CRM-SW - Elements in Seawater
Simulated Seawater in 2% HNO3
CRM-SW -50 CRM-SW-100 CRM-SW-250 CRM-SW-500
CRM-TMDW
CRM-TMDW
CRM-TMDW
Primary Drinking Water Metals 4 Pack Sizes DWPS-50 DWPS-100 DWPS-250 DWPS-500
Secondary Drinking Water Metals 4 Pack Sizes DWSS-50 DWSS-100 DWSS-250 DWSS-500
WQC-HARD-DW - Hardness Quality Check Standard for Drinking Water
WQC-SIO2-DW - Silica QC Sample
CWW-TM-A 10 mL Certified Waste Water - Trace Metals Solution A in 10% HNO3 + Tr HF
CWW-TM-B 10 mL Certified Waste Water - Trace Metals Solution B in 10% HNO3 + Tr HF
CWW-TM-C 10 mL Certified Waste Water - Trace Metals Solution C in 10% HNO3 + Tr HF
CWW-TM-D -10 mL Certified Waste Water - Trace Metals Solution D in 10% HNO3 + Tr HF
CWW-TM-E -10 mL Certified Waste Water - Trace Metals Solution E in 10% HNO3 + Tr HF
CWW-TM-F -10 mL Certified Waste Water - Trace Metals Solution F in 10% HNO3 + Tr HF
CWW-TM-G -10 mL Certified Waste Water - Trace Metals Solution G in 10% HNO3 + Tr HF
CWW-TM-H - 10 mL Certified Waste Water - Trace Metals Solution H in 10% HNO3 + Tr HF
CWW-N-A - 10 mL Certified Waste Water - Nutrient Solution A in water
CWW-N-B - 10 mL Certified Waste Water - Nutrient Solution B in water
CWW-N-C - 10 mL Certified Waste Water - Nutrient Solution C in water
WQC-NUTRI-WW - Waste Water Nutrients Concentrates 10 mL concentrate QC Sample to be diluted 1:100 for total Kjeldahl Nitrogen and total Phosphorus
Demand (TOC)
CWW-TOC-A 5 mL Certified Waste Water - Demand (TOC) Solution A in H2O
CWW-TOC-B 5 mL Certified Waste Water - Demand (TOC) Solution B in H2O
CWW-TOC-C 5 mL Certified Waste Water - Demand (TOC) Solution C in H2O
CWW-TOC-D 5 mL Certified Waste Water - Demand (TOC) Solution D in H2O
CWW-TOC-E 5 mL Certified Waste Water - Demand (TOC) Solution E in H2O
CWW-TOC-F - 5 mL Certified Waste Water - Demand (TOC) Solution F in H2O
CWW-TOC-G 5 mL Certified Waste Water - Demand (TOC) Solution G in H2O
AAS-SSWS-R Spiking Solution containing 6 elements: Cd @ 5 µg/mL, Se @ 10 µg/mL, As @ 40 µg/mL, Tl @ 50 µg/mL, Sb, Pb @ 100 µg/mL in 2% HNO3 + Tr HF
ICP-SSWS Spiking Solution containing 18 elements: Be, Cd, Ag @ 5 µg/mL, Cr @ 20 µg/mL, Cu @ 25 µg/mL, Sb, Co, Pb, Mn, Ni, V, Zn @50 µg/mL, Fe @ 100 µg/mL, Al, As, Ba, Se, Tl @ 200 µg/mL in 2% HNO3 + Tr HF
ICP-SSWS-M Spiking Solution containing 18 elements: Se @ 1 µg/mL, As @ 2 µg/mL, Pb @ 4 µg/mL, Be, Cd, Ag, Tl @ 5 µg/mL, Cr @ 20 µg/mL, Cu @ 25 µg/mL, Sb, Co, Mn, Ni, V, Zn @50 µg/mL, Fe @ 100 µg/mL, Al, Ba @ 200 µg/mL in 2% HNO3 + Tr HF
ICP-AM-7
8 Element Calibration Standard Packaged as 2 Solutions; Solution A: Cd, Se @ 250 µg/mL, As, Cr, Pb, Ag @ 1000 µg/mL, Ba @ 10,000 µg/mL in 4% HNO3; Solution B: Hg @ 50 µg/mL in 5% HNO3
High Purity Standards Inc. Analytical Mixtures are designed to calibrate the instrument response, or as a quality control check for the analysis of geological, waste water, air particulates, soils, plant tissue, and animal tissue samples
Four Pack Sizes: ICP-AM-7-50 ICP-AM-7-100 ICP-AM-7-250 ICP-AM-7-500
Four Pack Sizes: ICP-AM-7-A-50 ICP-AM-7-A-100 ICP-AM-7-A-250 ICP-AM-7-A-500
TCLP-EF - 1000mL Extraction Fluid No. 1, pH 4.93 ± 0.05 in 1000 mL, packaged as 5 x 200 mL concentrate to make up to 50L of TCLP extraction fluid
Greyhound Chromatography is pleased to supply High Purity Inc Certified Reference Standards to Research and Analysis laboratories worldwide.
Established in 1981, Greyhound Chromatography has been supplying high quality Chromatography consumables to Research and Analysis Laboratories around the world for 38 years. Greyhound's Managing Director, Paul Massie founded the company which operates from its UK warehouse and office facility, located in Birkenhead, Merseyside.
Greyhound supplies Certified Reference Standards and Materials, Research Chemicals; including Solvents and Reagents and Laboratory consumables. New products are constantly added to Greyhound's e-commerce website, be sure to register to the website to view product prices.
Chromatography is a laboratory technique for the separation of a mixture. The mixture is dissolved in a fluid called the mobile phase, which carries it through a structure holding another material called the stationary phase. The various constituents of the mixture travel at different speeds, causing them to separate. The separation is based on differential partitioning between the mobile and stationary phases. Subtle differences in a compound's partition coefficient result in differential retention on the stationary phase and thus affect the separation.
Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Fragrance, Forensics, Chemical and Pharmaceutical analysis, holding stock of many popular products for prompt delivery via our extensive logistics network.
Greyhound prides itself on personal service which provides prompt, efficient, cost-effective, safe delivery of all products. With state-of-the art facilities and highly trained staff, Greyhound provides technical advice and distribution of Chromatography consumables across all disciplines. Our service is designed to provide a wide range of products, to help our clients to achieve excellent, cost-effective results. Greyhound manufactures its own range of Capillary Columns, Syringe Filters, SPE Cartridges and HPLC Columns, the 'Q' Range, as well as representing the industry’s best known manufacturers.
By working with the industry’s best known manufacturers we are able to tailor products to customer requirements and distribute products on behalf of 3M, AIT, Biosolve; BP (British Pharmacopeia), Cerilliant; Chem Service (Environmental and Pesticides); Chiron; Chromacol; EP Scientific; Extrasynthese, Gas Arc; Hach Lange, Hamilton; High Purity Standards; Honeywell, IDEX; Jour Research; Larodan Fine Chemicals; Macherey-Nagel; Merck, National Scientific; NIST; Paragon Scientific, PAH Reference Standards; Peak Scientific, Pfaltz and Bauer; Regis Technologies; Rheodyne; RT Corporation; SGE analytical, SGT Filters; Sigma Aldrich, Fluka and Supelco; Silicycle, Swagelok; TCI (Tokyo Chemical Industry); Thermo Scientific, Trajan, Upchurch; USP (United States Pharmacopeia); Vici Valco Cheminert, Wellington Laboratories. Wheaton,
Products are added to the Greyhound website on a daily basis. You can register your contact details, https://www.greyhoundchrom.com/register once registered you can purchase goods on-line. If you don't see what you're looking for please email info@greyhoundchrom.com or call +44 (0) 151 649 4000 we will be pleased to source specific consumables for you.
Chemical Standards; Organic Reference Standards, Inorganic Reference Standards; Custom Mixtures, Solvents; Environmental Reference Standards: Dioxins/Furans/PCBs/PBDEs; Gas Filters; Lamps; Gas Generators, Prep Silica; Reagents; Syringes; Valves;Vials/Caps/Septa.
Chiral Chromatography; Derivatives Analysis; Environmental Analysis, GC; GC-MS; LC-MS; HPLC; ICP, ICP-MS, AA; Ion Chromatography;SPE Solid Phase Extraction; SPME Solid Phase Micro-Extraction;TLC Thin Layer Chromatography
Gas Chromatography, Liquid Chromatography, High Performance Liquid Chromatography (HPLC), Ultra High Performance Liquid Chromatography, (UHPLC) Affinity Chromatography, Supercritical Fluid Chromatography, Ion Exchange Chromatography, Ion Exchange Chromatography, SIze-Exclusion Chromatography, Expanded Bed Adsorption Chromatographic Separation, Reversed-Phase Chromatography, Hydrophobic Interaction Chromatography, Two-Dimentional Chromatography, Simulated moving-bed Chromatography, Pyrolysis Chromatography, Fast protein liquid Chromatography, Countercurrent Chromatography, Periodic counter-current Chromatography, Chiral Chromatography, Aqueous normal-phase Chromatography, Thin Layer Chromatography (TLC),
Our technical sales team is available to discuss your requirements in detail, from the application of products, to sourcing and prompt delivery. We are able to source hard to find chemicals which are no longer commercially available and are able to supply over 13,000 laboratory chemicals in small, convenient units. Our Technical Sales team are on hand to provide detailed product usage and product advice. We are able to provide Organic and Inorganic Custom Mixtures, made to your requirements from our ISO accredited manufacturers.
You can contact the most appropriate department to deal with your enquiry; by email or by telephone. We have a central switchboard, when your call is answered please state the nature of your enquiry, you will be directed to the most appropriate person.
General Enquiries: email our team info@greyhoundchrom.com
or call (+44 (0) 151 649 4000
Sales Enquiries: email our Sales Team sales@greyhoundchrom.com
or call (+44 (0) 151 649 4000
To Place an Order: by email our Order Processing Team orders@greyhoundchrom.com
or call (+44 (0) 151 649 4000
To Order on-line: Register for a log in at www.greyhoundchrom.com You can place orders in our e-commerce shop, once registered.
Marketing Enquiries: email our Marketing Team marketing@greyhoundchrom.com
or call (+44 (0) 151 649 4000
Postal Address: Greyhound Chromatography and Allied Chemicals, 6 Kelvin Park, Birkenhead, Merseyside, CH41 1LT, UK
By Telephone:
All members of staff can be contacted using our Central Switchboard Number +44 (0) 151 649 4000
FAX No: +44 (0) 151 649 4001
Paul Massie Managing Director
Colin Lambert Operations Director
Susan Massie Sales & Marketing Director
Rachel Phillips MRSC Sales Manager
Here at Greyhound we appreciate that receiving goods safely and at the most economical cost is very important. Here at our Company premises we have highly qualified Logistics personnel who are fully trained and qualified in the safe handling of all of the products we supply, including goods that are classed as dangerous to transport. All export and transport regulations are fully complied with, whether that be by sea, air or road. Our helpful Logistics team are here to advise the most economical method or transport while fully complying with UK transport regulations and the regulations of the country of the final destination.
We can assist with Customs Certification and Declarations, where these are required.
We source products from approved suppliers around the world. All of whom are accredited to ISO Guide 9001:2008,
ISO 17025 or ISO Guide 34, thus ensuring continuity of products, manufactured to the highest quality.
Greyhound 9001:2015 Certificate
We're often asked where our brand name 'Greyhound' comes from. The simple explanation is that we wanted a name that people would remember easily. 38 years ago there was no such thing as Email and certainly no Internet. Very few Fax machines were in use so everything took much longer to source and deliver. Greyhound wanted to provide a service that was quick and reliable - there aren't many animals that are as quick as a Greyhound. So we chose the sleek, fast Greyhound to take our business around the world. The latest version of our logo is an 'updated' dog, probably the Great Grandson of the original dog.
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Tel: +44 (0) 151 649 4000
Email: marketing@greyhoundchrom.com
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Huge Savings off C8 and C18 SiliaChromPlus HPLC Columns
SiliaChrom Plus is the latest proprietary silica-based material for your more challenging separations requiring high column performance and resolution, enhanced chromatographic performance, lot-to-lot reproducibility and extended column lifetime.
The exceptional silica used in the SiliaChrom Plus HPLC Columns ensures their reliability, high performance and peak symmetry which is required by QA/QC laboratories.
SiliaChrom Plus HPLC Columns are one of the most popular ranges of robust HPLC columns in the world and are now available from Greyhound at an exceptionally low cost.
SiliaChrom Plus phases were designed to help you with your everyday analyses, requiring improved performance and resolution.
The perfectly controlled particle size, pore size and bonding coverage of these phases allow for better reproducibility and scalability of your methods.
All SiliaChrom Plus columns are available in 3, 5 & 10?m.
SiliaChrom Plus Family Main Characteristics
Special prices are available with this unique offer or place a call-off order now, quoting the above promotion code SCY0219 and receive the same low prices until January 2020 !
For other HPLC Columns and accessories in the SiliaChrom range please view the website
or Download the Current Catalogue
If you have any Paragon product requirements please do get in touch with our sales team. Simply email sales@greyhoundchrom.com or call +44 (0) 151 649 4000
CONTACT US
Tel: +44 (0) 151 649 4000
Email: marketing@greyhoundchrom.com
FOLLOW US
YOU MAY ALSO BE INTERESTED IN OUR NEWSLETTER
You May also be interested In
Huge Savings off C8 and C18 SiliaChromPlus HPLC Columns
SiliaChrom Plus is the latest proprietary silica-based material for your more challenging separations requiring high column performance and resolution, enhanced chromatographic performance, lot-to-lot reproducibility and extended column lifetime.
The exceptional silica used in the SiliaChrom Plus HPLC Columns ensures their reliability, high performance and peak symmetry which is required by QA/QC laboratories.
SiliaChrom Plus HPLC Columns are one of the most popular ranges of robust HPLC columns in the world and are now available from Greyhound at an exceptionally low cost.
SiliaChrom Plus phases were designed to help you with your everyday analyses, requiring improved performance and resolution.
The perfectly controlled particle size, pore size and bonding coverage of these phases allow for better reproducibility and scalability of your methods.
All SiliaChrom Plus columns are available in 3, 5 & 10?m.
SiliaChrom Plus Family Main Characteristics
Special prices are available with this unique offer or place a call-off order now, quoting the above promotion code SCY0219 and receive the same low prices until January 2020 !
For other HPLC Columns and accessories in the SiliaChrom range please view the website
or Download the Current Catalogue
CONTACT US
Tel: +44 (0) 151 649 4000
Email: marketing@greyhoundchrom.com
FOLLOW US
YOU MAY ALSO BE INTERESTED IN OUR NEWSLETTER
Simulated Rainwater
These are standards that simulate the results of a real sample of a natural matrix. High-Purity Standards initiated these products, beginning with Simulated Rainwater, in 1992. Simulated Rainwater (part numbers SR-1 and SR-2) were designed from research conducted by the National Bureau of Standards (NBS), now NIST, sponsored by the EPA and USGS on acid rain. Our founder, Theodore Rains, participated in this research. This report is based upon his collection of notes and documents from that research that spanned over 10 years.
The goal was to create well-characterized and stable Standard Reference Materials (SRM) to aid in the monitoring of acid rain. It is the pH of the rain that categorizes it as acid rain. Normal rain is defined as having a pH of approximately 5.6. At a pH of 4.6 the rain will have a 10-times increase in acidity, and at 3.6 will have a 100-times acidity. The development of a simulated standard versus the collection of natural rainfall was based upon the need for a stable reference material containing minimal contaminants and unneeded components. The result of the project was the production of SRM 2694 “Simulated Rainwater”. The SRM consisted of four 50 mL solutions at two levels for a total of two bottles at a pH of 4.3 and two bottles at a pH of 3.6.
The first of the reports of the results came out in 1975, Simulated Precipitation Reference Materials, NBSIR 75-958. As this report describes, production of the initial standards was based upon recommendations from the EPA. The first adjustment was to balance the cation and anion concentrations. This adjustment moved the team away from the EPA recommendations. A decision was made to give preference to the cation guidelines. Further complicating the requirements was the goal of preparing a concentrate solution, 50-times the concentration of the final working solution. Lead and copper proved to be unstable at the concentration and pH of the standard. The samples were packaged in glass ampules and stability studies were run. The sodium values were found to increase over time, indicating a leaching from the ampule walls.
The experimentation was repeated in 1977, 1979 and 1982 and reported in Simulated Precipitation Reference Materials II NBSIR 77-1315, III NBSIR 79-1953 and IV NBSIR 82-2581. These studies included a separate reference material for pH, conductivity and acidity to address problems fro the first set of materials with those measurements. They repeated the preparation and analysis with new sets of material as well as conducting stability analysis on the previous sets of reference materials.
By 1984, NBS had developed a Reference Material, RM 8409, for the Simulated Rainwater. By this time the packaging had switched from glass ampules to polyethylene bottles and transition and heavy metals were eliminated. This was as a result of a decision to increase the stability of the material for those components most critical to acid rain studies: pH, acidity, conductance, nitrate, and sulfate. Of these components, the measurement of pH was the primary driving factor. Stability studies of RM 8409 at the eighth month point indicated degradation by a factor of greater than three in the concentration of ammonium.
Standard Reference Material (SRM) 2694 was introduced the following year. As an SRM, it would undergo more extensive testing than an RM, as RM standard only require a single analytical technique for each analyte. The SRM benefited from the studies of the previous standards and reference material. A new analytical method in the Inorganic Analytical Research Division of NBS was utilized for the metals analysis: laser-enhance ionization flame spectrometry. This method complimented by the ICP/FAA/FES methods used in the metals analysis. The ammonium and chloride values were listed on the Certificate of Analysis as reference data, not certified values, due to the stability issues previously observed.
High-Purity Standards has maintained this product as a catalog item since 1992. Unlike SRM 2694, we sell these items as two separate products. SR-1 mimics the Level 1 standard of SRM 2694 and SR-2 that of the Level 2 standard. You can find those items in our Water Standards category on our website and part numbers SR-1 or SR-2. The analytes in these products are traceable to various NIST SRMs. SRM 2694 is currently unavailable from NIST. Other related products to this include standards for pH buffers, conductivity and alkalinity.
Can’t find what you need? Custom standards can still be a very popular method of providing a specific matrix match for your use. To make this option cost effective, consider purchasing a larger quantity or placing a blanket order to lock in your current price and ensure its availability, Email sales@greyhoundchrom.com
Dioxins, Furans, PCB's and many other contaminants are found in the air, in water and contaminated soil. As they accumulate they can become harmful to human health, these contaminants of concern are classed as POPs (Persistent Organic Pollutants), Wellington Laboratories produce Certified Analytical Reference Standards and Materials for testing and analysis, constantly adding to their product portfolio as new contaminents emerge in our environment. Testing to identify these contaminents as they enter our environment through the air, soil and water is a constant battle. Recent media reports have highlighted the dangers to our environment and there are many theories and recommendations as to how we can reduce the impact of contaminents to our planet.
Produced inadvertently by industrial processes such as waste incineration, chemical treatments and manufacturing, Greyhound represents the world's leading manufacturers of Certified Reference Standards and materials, and Organic Trace Solvents which have been developed especially for testing Dioxins, Furans and PCB's.
SPECIAL OFFER – LIMITED STOCK OF DIOXIN AND PCB GRADE BIOSOLVE SOLVENTS
We have a limited stock of Dioxin & PCB Grade Biosolve solvents with a short expiry date (11 months).
Biosolve products are manufactured under strict and detailed operating procedures. The manufacturing plants meet the latest environmental and quality ISO standards, serving as development, production and distribution centres.
From the initial acceptance of selected raw material through process control to the final packed product, all steps are accurately documented. This ensures a high quality of production with lot-to-lot reproducibility and complete traceability for all purposes. Thanks to continual research and development.
Biosolve offers the finest grade Acetonitrile for HPLC & UHPLC available worldwide.
n-Hexane Dioxin & PCB Analysis
4 x 2.5 LTR List Price £223.09
Offer Price £125.00
Catalogue Number BIO-08296002-2
n-Hexane Dioxin & PCB Analysis
2 x 2.5 LTR List Price £125.49
Offer Price £70.00
For Over 35 years Wellington Laboratories Inc. has been internationally recognised as a trusted source of high quality reference standard solutions for use in environmental/analytical testing and toxicological research. Wellington Laboratories offers an extensive inventory of individual certified reference standards and solution mixtures of native and mass-labelled halogenated organic compounds including polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, polychlorinated biphenyls, halogenated flame retardants and perfluorinated compounds. Wellington Laboratories also offer a variety of calibration sets and support solutions designed to be used for common regulatory methods or modified in-house methods.
Wellington’s Reference Standards are used mainly in Environmental/analytical testing and toxicological research. Wellington offers an extensive inventory of individual certified reference standards and solution mixtures of native and mass-labelled halogenated organic compounds including polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, polychlorinated biphenyls, halogenated flame retardants and perfluoronated compounds. Wellington also offer a variety of calibration sets and support solutions designed to be used for common regulatory methods of modified in-house methods.
Biosolve products are manufactured under strict and detailed operating procedures. The manufacturing plants meet the latest environmental and quality ISO standards.
From the initial acceptance of selected raw material through process control to the final packed product, all steps are accurately documented. This ensures a high quality of production with lot-to-lot reproducibility and complete traceability for all purposes. Thanks to continual research and development, Biosolve offer one of the finest grade Acetonitrile for HPLC & UHPLC available worldwide: The Supra-gradient grade and the highest brand ULC/MS grade. Manufacturing and recommended expiry dates are clearly stated on the label whenever relevant. Thanks to the strict policy of quality control, Biosolve are an approved vendor to large health organizations, leading pharmaceutical companies and for the chemical and electronic industries.
With the development of advanced analytical techniques, trace analysis has been a major challenge for analytical chemists.
Analytical chemistry involves the separation, identification and qualification of taget compoun ds in complex samples. Modern chromatographic techniques have excellent separation power. However, due to the increasing requirements of environmental and toxicological regulations the current detection limits cannot meet all needs, therefore, sample enrichment by extraction-concentration technique is frequently required before intrioduction of samples into the chromatographic system. As a result high purity solvents are needed ion the extraction-concentration technique for the analysis of residues, pesticides and other general trace organic contaminants in water, soil food etc.
CONTACT US
Tel: +44 (0) 151 649 4000
Email: marketing@greyhoundchrom.com
FOLLOW US
YOU MAY ALSO BE INTERESTED IN OUR NEWSLETTER
Simulated Rainwater
These are standards that simulate the results of a real sample of a natural matrix. High-Purity Standards initiated these products, beginning with Simulated Rainwater, in 1992. Simulated Rainwater (part numbers SR-1 and SR-2) were designed from research conducted by the National Bureau of Standards (NBS), now NIST, sponsored by the EPA and USGS on acid rain. Our founder, Theodore Rains, participated in this research. This report is based upon his collection of notes and documents from that research that spanned over 10 years.
The goal was to create well-characterized and stable Standard Reference Materials (SRM) to aid in the monitoring of acid rain. It is the pH of the rain that categorizes it as acid rain. Normal rain is defined as having a pH of approximately 5.6. At a pH of 4.6 the rain will have a 10-times increase in acidity, and at 3.6 will have a 100-times acidity. The development of a simulated standard versus the collection of natural rainfall was based upon the need for a stable reference material containing minimal contaminants and unneeded components. The result of the project was the production of SRM 2694 “Simulated Rainwater”. The SRM consisted of four 50 mL solutions at two levels for a total of two bottles at a pH of 4.3 and two bottles at a pH of 3.6.
The first of the reports of the results came out in 1975, Simulated Precipitation Reference Materials, NBSIR 75-958. As this report describes, production of the initial standards was based upon recommendations from the EPA. The first adjustment was to balance the cation and anion concentrations. This adjustment moved the team away from the EPA recommendations. A decision was made to give preference to the cation guidelines. Further complicating the requirements was the goal of preparing a concentrate solution, 50-times the concentration of the final working solution. Lead and copper proved to be unstable at the concentration and pH of the standard. The samples were packaged in glass ampules and stability studies were run. The sodium values were found to increase over time, indicating a leaching from the ampule walls.
The experimentation was repeated in 1977, 1979 and 1982 and reported in Simulated Precipitation Reference Materials II NBSIR 77-1315, III NBSIR 79-1953 and IV NBSIR 82-2581. These studies included a separate reference material for pH, conductivity and acidity to address problems fro the first set of materials with those measurements. They repeated the preparation and analysis with new sets of material as well as conducting stability analysis on the previous sets of reference materials.
By 1984, NBS had developed a Reference Material, RM 8409, for the Simulated Rainwater. By this time the packaging had switched from glass ampules to polyethylene bottles and transition and heavy metals were eliminated. This was as a result of a decision to increase the stability of the material for those components most critical to acid rain studies: pH, acidity, conductance, nitrate, and sulfate. Of these components, the measurement of pH was the primary driving factor. Stability studies of RM 8409 at the eighth month point indicated degradation by a factor of greater than three in the concentration of ammonium.
Standard Reference Material (SRM) 2694 was introduced the following year. As an SRM, it would undergo more extensive testing than an RM, as RM standard only require a single analytical technique for each analyte. The SRM benefited from the studies of the previous standards and reference material. A new analytical method in the Inorganic Analytical Research Division of NBS was utilized for the metals analysis: laser-enhance ionization flame spectrometry. This method complimented by the ICP/FAA/FES methods used in the metals analysis. The ammonium and chloride values were listed on the Certificate of Analysis as reference data, not certified values, due to the stability issues previously observed.
High-Purity Standards has maintained this product as a catalog item since 1992. Unlike SRM 2694, we sell these items as two separate products. SR-1 mimics the Level 1 standard of SRM 2694 and SR-2 that of the Level 2 standard. You can find those items in our Water Standards category on our website and part numbers SR-1 or SR-2. The analytes in these products are traceable to various NIST SRMs. SRM 2694 is currently unavailable from NIST. Other related products to this include standards for pH buffers, conductivity and alkalinity.
Can’t find what you need? Custom standards can still be a very popular method of providing a specific matrix match for your use. To make this option cost effective, consider purchasing a larger quantity or placing a blanket order to lock in your current price and ensure its availability, Email sales@greyhoundchrom.com
Dioxins, Furans, PCB's and many other contaminants are found in the air, in water and contaminated soil. As they accumulate they can become harmful to human health, these contaminants of concern are classed as POPs (Persistent Organic Pollutants), Wellington Laboratories produce Certified Analytical Reference Standards and Materials for testing and analysis, constantly adding to their product portfolio as new contaminents emerge in our environment. Testing to identify these contaminents as they enter our environment through the air, soil and water is a constant battle. Recent media reports have highlighted the dangers to our environment and there are many theories and recommendations as to how we can reduce the impact of contaminents to our planet.
Produced inadvertently by industrial processes such as waste incineration, chemical treatments and manufacturing, Greyhound represents the world's leading manufacturers of Certified Reference Standards and materials, and Organic Trace Solvents which have been developed especially for testing Dioxins, Furans and PCB's.
SPECIAL OFFER – LIMITED STOCK OF DIOXIN AND PCB GRADE BIOSOLVE SOLVENTS
We have a limited stock of Dioxin & PCB Grade Biosolve solvents with a short expiry date (11 months).
Biosolve products are manufactured under strict and detailed operating procedures. The manufacturing plants meet the latest environmental and quality ISO standards, serving as development, production and distribution centres.
From the initial acceptance of selected raw material through process control to the final packed product, all steps are accurately documented. This ensures a high quality of production with lot-to-lot reproducibility and complete traceability for all purposes. Thanks to continual research and development.
Biosolve offers the finest grade Acetonitrile for HPLC & UHPLC available worldwide.
n-Hexane Dioxin & PCB Analysis
4 x 2.5 LTR List Price £223.09
Offer Price £125.00
Catalogue Number BIO-08296002-2
n-Hexane Dioxin & PCB Analysis
2 x 2.5 LTR List Price £125.49
Offer Price £70.00
For Over 40 years Wellington Laboratories Inc. has been internationally recognised as a trusted source of high quality reference standard solutions for use in environmental/analytical testing and toxicological research. Wellington Laboratories offers an extensive inventory of individual certified reference standards and solution mixtures of native and mass-labelled halogenated organic compounds including polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, polychlorinated biphenyls, halogenated flame retardants and perfluorinated compounds. Wellington Laboratories also offer a variety of calibration sets and support solutions designed to be used for common regulatory methods or modified in-house methods.
Wellington’s Reference Standards are used mainly in Environmental/analytical testing and toxicological research. Wellington offers an extensive inventory of individual certified reference standards and solution mixtures of native and mass-labelled halogenated organic compounds including polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, polychlorinated biphenyls, halogenated flame retardants and perfluoronated compounds. Wellington also offer a variety of calibration sets and support solutions designed to be used for common regulatory methods of modified in-house methods.
Biosolve products are manufactured under strict and detailed operating procedures. The manufacturing plants meet the latest environmental and quality ISO standards.
From the initial acceptance of selected raw material through process control to the final packed product, all steps are accurately documented. This ensures a high quality of production with lot-to-lot reproducibility and complete traceability for all purposes. Thanks to continual research and development, Biosolve offer one of the finest grade Acetonitrile for HPLC & UHPLC available worldwide: The Supra-gradient grade and the highest brand ULC/MS grade. Manufacturing and recommended expiry dates are clearly stated on the label whenever relevant. Thanks to the strict policy of quality control, Biosolve are an approved vendor to large health organizations, leading pharmaceutical companies and for the chemical and electronic industries.
With the development of advanced analytical techniques, trace analysis has been a major challenge for analytical chemists.
Analytical chemistry involves the separation, identification and qualification of taget compoun ds in complex samples. Modern chromatographic techniques have excellent separation power. However, due to the increasing requirements of environmental and toxicological regulations the current detection limits cannot meet all needs, therefore, sample enrichment by extraction-concentration technique is frequently required before intrioduction of samples into the chromatographic system. As a result high purity solvents are needed ion the extraction-concentration technique for the analysis of residues, pesticides and other general trace organic contaminants in water, soil food etc.
CONTACT US
Tel: +44 (0) 151 649 4000
Email: marketing@greyhoundchrom.com
FOLLOW US
YOU MAY ALSO BE INTERESTED IN OUR NEWSLETTER
