1,3,6,8-Tetrabromo-9H-carbazole Certified Reference Standard Cas # 55119-09-0

Halogenated carbazoles have recently been recognised as emerging environmental contaminants. Although there exact source has not been determined, both modern and historic sources (LED manufacturing and halogenated indigo dyes respectively) have been suggested. Since certain halogenated carbazole congeners can be lost during acid silica clean-up, it is very important that reference standards be used to monitor recoveries when processing samples.

1,3,6,8-Tetrabromo-9H-carbazole Certified Reference Standard - Buy online HERE

For over 30 years Greyhound Chromatography has been supplying high quality Chromatography consumables to laboratories around the world. Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Forensics, Chemical and Pharmaceutical analysis. Backed by a highly experienced technical services team, Greyhound is the preferred source amongst today’s analysts.

Greyhound Chromatography is pleased to supply Wellington Laboratories Certified Reference Standards and Materials to Research and Analysis laboratories worldwide.

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Agilent Certified, pre-assembled screw top vial pack, 2 mL, clear vials, PTFE/red rubber septa, blue caps

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Agilent Certified, pre-assembled screw top vial pack, 2 mL, clear vials, PTFE/red rubber septa, blue caps, 100/pk

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Agilent Flash lamp for G1321A fluorescence detector

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Agilent Snap top vial, 2 mL, amber with write-on spot, 100/pk

View the full range of Greyhound Syringe Filters 

Regenerated Cellulose Syringe Filters

Q-Fil Certified Syringe Filters

Q-Fil Certified Syringe Filters set the new Quality standard for today’s laboratory syringe filters Manufactured from the highest quality medical grade high density polypropylene, Q-Fil Certified Syringe Filters provide excellent chemical compatibility with acids, alcohols, bases, ethers, glycols, ketones and oils, with maximum operating temperatures of 135°C.

Every colour-coded filter is printed with the individual batch number, details of the membrane material and its pore size, on the outside rim of the filter, making them unique for traceability, GLPs and validation purposes.

BUY HERE

Why filter your samples for HPLC?

• To protect the HPLC column, the column inlet frits and capillary columns against blockage (plugging) caused by particulate matter in the sample
• To protect injection valves from damage caused by scratching and wear of the valves internal components, caused by harmful particulate matter in the unfiltered sample, thereby reducing instrument downtime.

About our Quality Control procedures

• Every batch of filters is tested by an independent laboratory to ISO 17025 quality procedures

• Every individual Q-Fil Certified Syringe Filter is visually inspected to ensure it meets our manufacturing and quality control specifications
• Samples of all our syringe filters and their respective raw technical data are stored for a period of 5 years from the date of manufacture for future reference
• Each batch of filters is tested prior to release for
- External Dimensions
- Bubble Point
- Burst Pressure
- Filter Integrity
- Water Flow Rate
- UV Extractables and compliance with all technical procedures

Why use Greyhound Q-Fil Certified Syringe Filters?

• Q-Fil Certified Syringe Filters are manufactured in compliance with ISO 9001:2000 quality procedures

• Every box is supplied with a Certificate of Analysis and Conformance to guarantee its batch to batch quality and performance
• The unique encapsulating process developed for these filters, forces the sample to pass only through the membrane, thus avoiding the possibility of leaks or contamination
• Available in the most popular sizes, porosities and membrane types
• Excellent resistance to all routinely used HPLC solvents
• Filter housings are manufactured from high density medical grade polypropylene
• Extremely low level of extractables for highly sensitive work
• Luer connections fully comply with ISO 594-1
• Filters are available with standard and ‘SlimTip’ sized outlets

Selecting the right Q-Fil Certified Syringe Filter

• Choose the size of filter based on the volume of sample to be filtered

• Choose the filters porosity based on the size of the potential particulates in the sample. It is important to be aware that the finer the porosity of the membrane the greater the pressure will be required to pass the sample through the filter. A sample containing large quantities of particulates is best filtered using a filter with a built-in glass fibre pre-filter
• Choose the type of membrane based on the solvent being filtered.

Filter Sizes

All our filters have female Luer Lock inlets and are available in three diameters -

25mm Diameter
Designed for large sample volumes or solvent filtration
Wide cross sectional area 3.55cm2
Maximum filtration volume >10ml
Maximum operating pressure 550 Kpa

13mm Diameter
Suitable for most applications
Filtration area of 0.95cm2
Maximum filtration volume 1 to 10ml Maximum operating pressure 750 Kpa Now available with ‘SlimTip’ (ST) outlet

4mm Diameter
Suitable for most applications Ideal for small samples <1ml Pore sizes of 0.20µm and 0.45µm
SlimTip Filters (ST)
13mm diameter syringe filters are now available with the new ‘SlimTip’ outlet for direct filling of microvials.

Pore Sizes

Q-Fil Certified Syringe Filters are available in 0.20µm and 0.45µm pore sizes. The 0.20µm filters remove the smallest particulates whilst the 0.45µm filters are designed to remove particulates which would be detrimental to most analytical columns.

Pre-filters (page 6) have a glass microfibre membrane which is chemically inert and resists most solvents. Q-Fil glass microfibre pre-filters are recommended for removing large particulates from the sample and are ideal for dissolution tests.

Glass microfibre membranes are also available mounted before the microporous filter membrane in the polypropylene housing. The glass pre-filter removes the larger particulates and prevents premature clogging of the filter.

Wellington Laboratories Catalogue 2021 - 2023 

Wellington Laboratories is pleased to announce the long-awaited release of their latest catalogue which contains the most up-to-date-listing of Wellington's Certified Reference Standard Solutions, Solution/Mixtures and Calibration Sets.  Below you will find a selection of new products introduced in this new catalogue.  Amongst the new products on offer you will find a comprehensive calibration set for polychlorinated naphthalenes (PCNs), native and mass-labelled PCN Support Solutions and additional individual organochlorine pesticide (OPC) standards. 

Wellington Laboratories also continue to offer most of the products that were listed in their previous catalogue as they have remained relevant for environmental analysis and are frequently requested. 

NEW ADDITIONS TO WELLINGTON LABORATORIES PRODUCT LIST

Alternative Method 16130 Calibration Set (16130CVS)

Mass-Labelled PCDD Window Defining Mixture (MD5CWDS)

Mass-Labelled PCDF Window Defining Mixture (MF5CWDS)

35 Individual Native OCP Standards

24 Mass-Labelled OCP Standards

PCN Calibration Set (PCN-CVS-A) & Support Solutions

27 Individual Native PCN Standards

14 Mass-Labelled PCN Standards

and more .........

Greyhound Chromatography is pleased to  represent Wellington Laboratories throughout Europe and the Middle East.  Our Sales team will be delighted to deal with your enquiry for Wellington products. Email: sales@greyhoundchrom.com

   Full Range of Wellington Laboratories' Products

PFAS and Other Toxic Forever Chemicals in Drinking Water 

For over 30 years the European Union have worked tirelessly to protect the integrity of our drinking water.  EU officials have recently reached a provisional agreement to update the Union's 1998 Drinking Water Directive to tighten up the permissible limits allowed for both PFAS and several other drinking water contaminants, including bisphenol-A, microplastics, lead and chromium.   The at the time of writing the European Parliament and Council are still to formally approve the proposal. 

European drinking water standards currently far exceed the standards set in the United States but this is a changing picture as state by state new instances of contaminants are emerging.  Currently, the U.S. Environmental Protection Agency has only issued a nonenforceable health advisory of 70 ppt for PFOA, formerly used by DuPont to make Teflon, and PFOS, formerly an ingredient in 3M’s Scotchgard. Those compounds are no longer manufactured in the U.S., but they and other PFAS contaminate the drinking water for an estimated 110 million Americans. PFOA, PFOS and some other PFAS chemicals have been linked to cancer, thyroid disease, reproductive and immune system problems, and other health harms.

The european Parliament and the Council of the European Union have released new requirements for the analysis of per- and perfluoroalkyl substances (PFAS) in water intended for human consumption (5813/20).  This amendment to Council Directive 98/83/EC included perfluoroalkanesulfonates that are not commercially available.  In response to this Wellington Labroatories, Canada, is pleased to announce that its chemists have synthesized, purified, characterized and prepared accurate certified reference standards of the required substances: sodium perfluoro-1-undecanesulfonate (L-PFUds) and sodium perfluoro-1-tridecanesulfonate (L-PFTrDS).  Wellington Laboratories have also prepared a native solution/mixture (EU-5813-NSS) that contains all of the PFAS listed in the drinking water directive (5813/20) for your convenience.  This solution/mixture can be used in conjunction with two of Wellington's existing mass-labelled PFAS mixtures to easily prepare a calibration set for quantification. 

Suggested extraction standard mixture :  MPFAC-C-ES

Suggested injection standard mixture:     MPFAC-C-IS

Q-Range PFAS Analysis Screw Top Vials Kits, 9mm 

Please visit our website www.greyhoundchrom.com to view all available vials and accessories. 

Ordering Information: 

You can order on-line (registration required), www.greyhoundchrom.com 

 or by telephone, +44 (0)151 649 4000 - Sales Department

 Request a quotation: sales@greyhoundchrom.com

 General Information: info@greyhoundchrom.com

CONTACT US  

Tel:        +44 (0) 151 649 4000  

Web:     www.greyhoundchrom.com  

Email:   marketing@greyhoundchrom.com  

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Wellington Laboratories Quality Management

The people at Wellington are committed to the distribution of quality products as well as the maintenance of excellent customer service. In fact, in order to provide you with the best possible service, we now have three ISO certifications (ISO 9001:2015, ISO/IEC 17025:2017 and ISO 17034:2016) which cover all aspects of planning, production, testing, distribution, and post-distribution service.

These certifications allow us to monitor and maintain the highest level of quality and service and also allow our customers to satisfy the requirements of their own ISO certifications.

Our ISO/IEC 17025:2017 accreditation has been certified by the Canadian Association for Laboratory Accreditation Inc. (CALA) and our scope is available for review on the CALA Directory of Accredited Laboratories (http://www.cala.ca).

Similarly, our ISO 17034:2016 accreditation has been certified by ANSI National Accreditation Board (ANAB) and our certificate and scope are also available on their website (http://anab.org/).

If you require a hard copy of any of our ISO certificates, please do not hesitate to contact us at info@well-labs.com.

B. CHITTIM	C. TASHIRO	N. RIDDELL

New Certified Reference Standards for PFAS Testing, Available from Greyhound Chromatography.

In response to the ever increasing demand for new Reference Standards to test for the presence of PFAS in everyday products Wellington Laboratories has increased its product line to include four new perfluoroether and perfluoropolyether-carboxylic acids (PF40PeA, PF50HxA, 3,6-0PFHpA and P5MeODIOXOAc), a perfluoroethersulfonate (PFEESA), perfluorodecanesulfonamide (FDSA-1) and N-methylperfluorobutanesulfonamide (N-MeFBSA-M).

Greyhound Chromatography supplies an extensive range of pre-prepared and custom made Certified Reference Standards and Materials from a number of leading manufacturers, including British Pharmacopoeia (BP), Cerilliant (a Sigma Aldrich Company), Chem Service Inc., Chiron, European Pharmacopoeia (EP), Extrasynthese, High Purity Standards, Honeywell (Fluka), Laradon, NIST, Merck (Sigma Aldrich, Supelco) , Paragon Scientific, Pfaltz & Bauer, RTC (a Sigma Aldrich Company), United States Pharmacopoeia (USP), Wellington Laboratories.

Custom Mixtures manufactured by Chem Service Inc. and High Purity Standards to your specifications, fully certified to ISO 9001:2015 and accredited by ANAB to ISO/IEC 17025:2005 and ISO 17034:2016. 

WELLINGTON REPORTER NOVEMBER 2019

PFAS Plastics Pollution of our Seas and Oceans

As the world wakes up to our environmental crisis it is important to note that every person living on our planet bears a responsibility for the world we have to live in.  Resources are limited and their supply is thretened by overuse and careless disregard for how resources are produced and sustained.  Whether it be our soil, air or water all are equally valuable is the quest to make our resources last and sustain our populations.  Global contamination of our seas and oceans is only the tip of the iceberg. Today's research scientists bear an enormous responsibility as they  endeavour to reduce and repair the impact we are having on our planet. 

Greyhound Chromatography supplies the world's leading scientists with analytical reference standards and materials to ensure testing of contaminants in our environment to the highest level. 

Latest Environmental News

Denmark just became the first country to ban PFAS from food packaging

Denmark will be the first country to ban PFAS Chemicals, which have been linked to cancer, elevated cholesterol and decreased fertility, from food packaging, starting next year.   

PFAS substances, sometimes called "forever chemicals" because they don't break down in the environment, are used to repel grease and water in packaging for fatty and moist foods such as burgers and cakes.

What are PFAS chemicals, and what are they doing to our health?

"I do not want to accept the risk of harmful fluorinated substances (PFAS) migrating from the packaging and into our food. These substances represent such a health problem that we can no longer wait for the EU," Denmark's Food Minister Mogens Jensen said in a statement Monday.

PFAS chemicals are a family of potentially thousands of synthetic chemicals that are extremely persistent in the environment and in our bodies. PFAS is short for perfluoroalky and polyfluoroalkyl substances, and includes chemicals known as PFOS, PFOA and GenX.

They are all identified by signature elemental bonds of fluorine and carbon, which are extremely strong and what make it so difficult for these chemicals to disintegrate in the environment or in our bodies.

Under Denmark's new regulation, baking paper and microwave popcorn bags, for example, will be required to be manufactured without any PFAS.

"We congratulate Denmark on leading the way for healthier food and hope this will encourage similar action across the EU, the US and worldwide," said Arlene Blum of the Green Science Policy Institute and the Department of Chemistry at University of California, Berkeley.

FDA confirms PFAS chemicals are in the US food supply

"Given the potential for harm, we must ask if the convenience of water and grease resistance is worth risking our health," Blum said.

PFAS chemicals have been manufactured since the 1940s and can be found in Teflon nonstick products, stains and water repellants, paints, cleaning products, food packaging and firefighting foams.

These chemicals can easily migrate into the air, dust, food, soil and water. People can also be exposed to them through food packaging and industrial exposure.

A growing body of science has found that there are potential adverse health impacts associated with PFAS exposure, including liver damage, thyroid disease, decreased fertility, high cholesterol, obesity, hormone suppression and cancer.

In a statement, the Danish Veterinary and Food Administration said that the substances were very difficult to break down in the environment, and some of them accumulate in humans and animals.

The ban covers the use of PFAS compounds in food contact materials of cardboard and paper. The Danish government said it would continue to be possible to use recycled paper and paper for food packaging, but said PFAS compounds must be separated from the food with a barrier which ensures that they don't migrate into the food.

PFOS and PFOA are the two most-studied PFAS chemicals and have been identified as contaminants of emerging concern by the US Environmental Protection Agency.

PFOS was voluntarily phased out of production in the United States by 3M, the main manufacturer, starting in 2000. In 2006, PFOA began to be phased out as well. PFOA and PFOS are no longer manufactured or imported in the United States, but similar "replacement chemicals for PFOA and PFOS such as GenX, may be just as persistent," Susan M. Pinney, a professor in the Department of Environmental Health at the University of Cincinnati.

The European Food Safety Agency said it is reassessing the risks PFAS pose to human health and will report on its findings in the near future.

Wellington Laboratories offer a wide range of Certified Reference Standards for Testing and Analysis of Perfluorinated Compounds.

Perfluorinated Compounds (PFCs)

Per- and Polyfluoroalkyl Substances (PFAS) are an emerging class of environmental contaminants. Their unique properties create a host of analytical challenges that require the use of native and mass-labelled standards for the generation of accurate data.

The most notable PFAS include PFOS (perfluorooctanesulfonate) and PFOA (perfluorooctanoic acid) and Wellington currently offers multiple mass-labelled standards for these compounds to meet your analytical needs. In fact, Wellington offers a large selection of native and mass-labelled per- and poly-fluorinated compounds, including:

•                   Perfluoroalkylcarboxylic Acids (PFCAs)
•                   Perfluoroalkylsulfonates (PFASs)
•                   Perfluorooctanesulfonamides (FOSAs)
•                   Perfluorooctanesulfonamidoethanols (FOSEs)
•                   Perfluorooctanesulfonamidoacetic acids (FOSAAs)
•                   Telomer Alcohols (FTOHs)
•                   Telomer Acids (FTAs)
•                   Telomer Sulfonates (FTSs)
•                   Perfluoroalkylphosphonic acids (PFAPAs)
•                   Perfluoroalkylphosphinic acids (PFPi’s)
•                   …and more

These solutions can be found on pages 141 – 159 of Wellington Laboratories’ current catalogue.

Progress and Developments from Wellington Laboratories in 2019/2020

•          New PFAS Mixtures and Solutions

About Wellington Laboratories

For nearly 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.

Wellington Laboratories are committed to the distribution of quality products as well as the maintenance of excellent customer service. In fact, in order to provide your customers with the best possible service, Wellington have three ISO certifications (ISO 9001:2008, ISO/IEC 17025:2005, and ISO Guide 34:2009) which cover all aspects of planning, production, testing, distribution, and post-distribution service. These certifications allow Wellington Laboratories to monitor and maintain the highest level of quality and service and also allow their customers to satisfy the requirements of their own ISO certifications.

Wellington’s ISO/IEC 17025:2005 accreditation has been certified by the Canadian Association for Laboratory Accreditation Inc. (CALA) the scope is available for review on the CALA Directory of Accredited Laboratories (http://www.cala.ca).

Similarly, Wellington’s ISO Guide 34:2009 accreditation has been certified by ANSI-ASQ National Accreditation Board (ANAB), the certificate and scope are available on their website (http://anab.org/).

We are able to supply hard copies of any of the ISO certificates for yourself and your customers.

   Full Range of Wellington Laboratories' Products

 About the Author

Susan Massie, Marketing Director, Greyhound Chromatography and Allied Chemicals Email: sue@greyhoundchrom.com

Susan Massie is the Marketing Director for Greyhound Chromatography and Allied Chemicals, affectionately known as 'Greyhound' in our scientific community. Greyhound was founded by Susan's husband Paul Massie almost 40 years ago, Susan hasn't been in the business for all of that time but has been involved with Greyhound for over 17 years. Greyhound continues to grow, expanding into new markets and taking on the challenges of our ever changing environment. It's heartwarming to witness the world waking up to the fact that we are damaging our planet on a daily basis. Every action we take has a direct effect on our planet and the world we leave behind for future generations. Susan is passionate about climate change and is happy to work in an industry that can have a direct effect on reducing the impact of our actions on the environment. All of the team at Greyhound take our responsibilities very seriously, the products that we supply are used by the world's leading scientists and chemists as they endeavour to monitor and repair the environment. All is not lost, if we all take responsibility for our actions, from reducing our waste and reusing or recycling our material collateral we can make a difference. The internet is full of useful advice and guidance, Susan is proud to contribute to that wealth of knowledge whenever she can.

Greyhound prides itself on personal service which provides prompt, efficient, cost-effective, safe delivery of all products. Greyhound provides technical advice and distribution of Certified Reference Standards and Materials, Laboratory Consumables, Solvents and Reagents across all scientific disciplines. Greyhound Chromatography offers over 1 Million products from its UK warehouse. The team at Greyhound are proud to support the work of the world's leading scientists and chemists as they challenge the abuse of our planet and try to make a difference to the world we leave behind for our ancestors.

You can view Susan's Linked In Profile here https://www.linkedin.com/in/susan-massie-79ab4121/

CONTACT US

Tel:        +44 (0) 151 649 4000

Web:     www.greyhoundchrom.com

Email:   marketing@greyhoundchrom.com

FOLLOW US

YOU MAY ALSO BE INTERESTED IN OUR NEWSLETTER

SIGN UP HERE

CATALOGUE DOWNLOADS

Wellington Laboratories Catalogue 

Wellington Laboratories is pleased to announce the long-awaited release of their latest catalogue which contains the most up-to-date-listing of Wellington's Certified Reference Standard Solutions, Solution/Mixtures and Calibration Sets.  Below you will find a selection of new products introduced in this new catalogue.  Amongst the new products on offer you will find a comprehensive calibration set for polychlorinated naphthalenes (PCNs), native and mass-labelled PCN Support Solutions and additional individual organochlorine pesticide (OPC) standards. 

Wellington Laboratories also continue to offer most of the products that were listed in their previous catalogue as they have remained relevant for environmental analysis and are frequently requested. 

NEW ADDITIONS TO WELLINGTON LABORATORIES PRODUCT LIST

Alternative Method 16130 Calibration Set (16130CVS)

Mass-Labelled PCDD Window Defining Mixture (MD5CWDS)

Mass-Labelled PCDF Window Defining Mixture (MF5CWDS)

35 Individual Native OCP Standards

24 Mass-Labelled OCP Standards

PCN Calibration Set (PCN-CVS-A) & Support Solutions

27 Individual Native PCN Standards

14 Mass-Labelled PCN Standards

and more .........

Greyhound Chromatography is pleased to  represent Wellington Laboratories throughout Europe and the Middle East.  Our Sales team will be delighted to deal with your enquiry for Wellington products. Email: sales@greyhoundchrom.com

Native PFAS Certified Reference Standards

European drinking water standards currently far exceed the standards set in the United States but this is a changing picture as state by state new instances of contaminants are emerging.  Currently, the U.S. Environmental Protection Agency has only issued a nonenforceable health advisory of 70 ppt for PFOA, formerly used by DuPont to make Teflon, and PFOS, formerly an ingredient in 3M’s Scotchgard. Those compounds are no longer manufactured in the U.S., but they and other PFAS contaminate the drinking water for an estimated 110 million Americans. PFOA, PFOS and some other PFAS chemicals have been linked to cancer, thyroid disease, reproductive and immune system problems, and other health harms.

The european Parliament and the Council of the European Union have released new requirements for the analysis of per- and perfluoroalkyl substances (PFAS) in water intended for human consumption (5813/20).  This amendment to Council Directive 98/83/EC included perfluoroalkanesulfonates that are not commercially available.  In response to this Wellington Labroatories, Canada, is pleased to announce that its chemists have synthesized, purified, characterized and prepared accurate certified reference standards of the required substances: sodium perfluoro-1-undecanesulfonate (L-PFUds) and sodium perfluoro-1-tridecanesulfonate (L-PFTrDS).  Wellington Laboratories have also prepared a native solution/mixture (EU-5813-NSS) that contains all of the PFAS listed in the drinking water directive (5813/20) for your convenience.  This solution/mixture can be used in conjunction with two of Wellington's existing mass-labelled PFAS mixtures to easily prepare a calibration set for quantification. 

Suggested extraction standard mixture :  MPFAC-C-ES

Suggested injection standard mixture:     MPFAC-C-IS

Greyhound Chromatography offers a wide and ever increasing range of PFAS related products

Reference Standards and Materials, Columns, vials and chromatography related consumables.

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.