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Blog posts of '2023' 'March'

A Practical Guide to High Performance Liquid Chromatography (HPLC) | Greyhound Chromatography

MERCK Guide to HPLC

MERCK Guide to High Performance Liquid Chromatography HPLC - A full and comprehensive guide to HPLC

 

Contents:

Theory of Liquid Chromatography

System Setup and Settings

Method Development and Optimization

Chromtographic Separation of Large Molecules

Troubleshooting Common HPLC Issue

Reference Materials in LC-MS / MS Applications: challenges & Selection Considerations

 

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Greyhound Q-Fil catalogue  Greyhound reference standards guide   Trajan GC Supplies catalogue 

 

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Wellington Laboratories Catalogue Image            PFAS EBook  PFAS Environmental EBook

 

                Wellington Perfluoroalkyl Compounds

 

Dandy Vice Brochure  Chem Service Catalogue  

 

 

 

About the Author

 

Susan MAssie, Marketing Director Greyhound Chromatography Image

 

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

 

Susan Massie is the Sales & 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 more than 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/

 

 

 

 

Appleton Woods and Greyhound Chromatography Partnership Announcement!
Appleton Woods and Greyhound Chromatography partnership announcement
Pair our best selling vial and cap together!
Pair our best selling vial and cap together!
Appleton appCYCLE 2.0
Appleton appCYCLE 2.0
PFAS Banned From Food Packaging in Denmark | Wellington Laboratories | Greyhound Chromatography

Denmark was the first country to ban PFAS from food packaging

Wellington Laboratories Logo Image

 

 

Wellington Laboratories Catalogue Image            PFAS EBook  PFAS Environmental EBook

NATIVE AND MASS LABELLED PFAS SOLUTIONS/MIXTURES

 

Denmark will be the first country to ban PFAS Chemicals, which have been linked to cancer, elevated cholesterol and decreased fertility. 

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 LaboratoriesFor 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.

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.

Request a CofA.

Further Information about Greyhound's PFAS Related Products  HERE

 

Full Range of Wellington Laboratories' Products

CONTACT US   

Tel:        +44 (0) 151 649 4000   

Web:     www.greyhoundchrom.com   

Email:   marketing@greyhoundchrom.com   

FOLLOW US   

Facebook Icon Twitter Icon Instagram Icon LinkedIn Icon    

YOU MAY ALSO BE INTERESTED IN OUR NEWSLETTER   

SIGN UP HERE   

Greyhound Monthly Newsletter   

CATALOGUE DOWNLOADS   

Greyhound Q-Fil catalogue  Greyhound reference standards guide   Trajan GC Supplies catalogue 

 Greyhound Chromatography Q-Range Vials Catalogue Image     Chem Service Catalogue Image  Chem Service Pesticides Catalogue Image

Wellington Laboratories Catalogue Image            PFAS EBook  PFAS Environmental EBook

                Wellington Perfluoroalkyl Compounds

 

 

PFAS Reference Standards | Wellington Laboratories | Greyhound Chromatography
Plastics Pollution of our Seas and Oceans | Greyhound Chromatography
Q-Capâ„¢ Capillary Columns | Greyhound Chromatography
Q-Cap Capillary Columns | Greyhound Chromatography
Greyhound Q-Range Vials & Closures | Greyhound Chromatography

Greyhound Chromatography Q-Range Vials & Closures

Greyhound Chromatography Q-Range Logo

Vials & Caps for GC and HPLC Group Product Image

            QUALITY      RELIABILITY     PERFORMANCE

VIALS & CAPS 2022 CATALOGUE 

All Q-Range™ vials, inserts, caps and septa are manufactured to the highest specifications in the industry ensuring the products you receive will perform the task they are designed to do and that your analysis runs trouble free time after time.

100% Certified - Our range of vials and closures are manufactured under strict ISO specifications guaranteeing trouble free results.  All Q-Range Certified Vials are manufactured under contract in the USA and Europe to ensure the highest quality materials and manufacturing standards.

100% Free from Defects - Every part we supply is checked and approved for sale to ensure consistent performance.  All stages of the manufacturing processes are constantly monitored to ensure that every vial, cap and septa reaches you in perfect condition.

100% Quality Manufactured - Only the highest quality glass with extremely low ion content is used in the manufacture of Q-Range vials - 33-Expansion clear glass (USP1 Type 1 borosilicate, Class A) and 51A-Expansion amber glass (USP Type 1 borosilicate, Class B). 

100% Performance Guarantee - Every vial, cap and septa is manufactured to meet precise tolerances from the top of the vial to its base, from the diameter of the cap to the thickness of the septa, every aspect of the manufacturing journey is monitored to ensure the products you receive are exactly right for your application, will fit your instrument perfectly, and perform to the highest standards, saving you laboratory time, maximising productivity and avoiding instrument downtime and loss of important samples.

Greyhound Chromatography QClean Logo

Q-Clean Vials -Greyhound Q-Clean Vials are one of the most popular ranges of vials in the industry.  Every box of vials manufactured and packaged to this new specification is identified with the Q-Clean label.

Q-Clean vials are packaged in a certified cleanroom immediately after passing through the annealing oven at approx. 600°C.  These extremely hygienic conditions are pharmaceutical standard clean rooms, and the manufacturing and packaging process is the latest cleanliness standard for chromatography vials.

By selecting Q-Clean vials for your analysis, you can be confident that the vials you are using are not just clean, but are free of micro contaminants to guarantee the highest levels of performance for your analysis.

3 CERTIFICATION LEVELS

STANDARD     LC     MS

Standard Certification - The entire Q-Range of Vials and Closures are manufactured under our strict ISO specifications ensuring the quality of every product gives trouble free results. 

All products are guaranteed defect free to ensure peak performance

Every lot is fully traceable throughout its manufacturing process

All Q-Range Vials and Closures are packaged under clean room conditions to ensure contaminant free products.  (For Q-Clean vials please see additional product details above).

LC Certification - Our LC Certified Vial Kits provide the assurance of using particulate free vials for sample preparation.  

     Certification includes testing for -

  • Glass quality   • Dimension accuracy  • Cap/Septa specifications 
  • Full chemical test by HPLC and GC.

Mass Spec Certification - Our MS Certified Vial Kits provide the assurance of using particulate free vials for sample preparation.  

     Certification includes testing for -

  • Glass quality  • Dimension accuracy  • Cap/Septa specifications
  • GC/MS Background Test   • LC/MS Background Test   • Particle Counts

 

Our extensive range of Certified EPA/VOC

and TOC Vials and Closures can be found

on pages 34 to 37 of our Vials & closures catalogue.

 

EPA VOC Vials

Our Q Range Vials & Closures include:

8mm Standard Mouth, Crimp Top Micro-Vials

8mm Standard Mouth, Screw Top Vials

9mm Wide Mouth, Short Thread, Screw Top Vials

10mm Wide Mouth, Screw Top Vials

11mm Wide Mouth, Crimp top Vials

1mm Wide Mouth, Crimp / Snap Top Vials

13mm Crimp / Snap top Vials (for waters WISP & Schimadzu)

13mm Screw Top Vials (for Waters WISP & Schimadzu)

Shell Vials

Vials Racks

Headspace Vials

VOA (EPA), TOC & Storage Vials, Caps & Liners

Injection Vials 13mm & 20mm Crimp Top

Manual and Electronic Crimpers / Decappers

 Crimp Top Micro Vials 8mm Image

Greyhound Chromatography offers a range of Manual and Electronic Crimpers and De-Cappers.

                                                                  Electronic Crimper Image     Manual Crimper for Vials

A wide variety of vials, caps and closures available.  Please email we will be happy to help you to choose the right vial and closure for your application. info@greyhoundchrom.com 

 

CONTACT US  

Tel:        +44 (0) 151 649 4000  

Web:     www.greyhoundchrom.com  

Email:   marketing@greyhoundchrom.com  

FOLLOW US  

Facebook Icon Twitter Icon Instagram Icon LinkedIn Icon   

YOU MAY ALSO BE INTERESTED IN OUR NEWSLETTER  

SIGN UP HERE  

Greyhound Monthly Newsletter  

CATALOGUE DOWNLOADS  

PFAS EBook Image PFAS Environmental EBook

Greyhound Q-Fil catalogue  Greyhound reference standards guide   Trajan GC Supplies catalogue

 Greyhound Chromatography Q-Range Vials Catalogue Image   Wellington Laboratories Catalogue 2021-2023    Chem Service Catalogue Image

Native & Mass Labelled PFAS Solutions/Mixtures EPA Draft Method 1633 | Wellington Laboratories | Greyhound Chromatography

Native & Mass Labelled PFAS Solutions/Mixtures Compatible with U.S. EPA Draft Method 1633

Wellington Laboratories Logo   Wellington Laboratories Catalogue Image  PFAS EBook Image PFAS Environmental EBook 

WELLINGTON REPORTER OCTOBER 8, 2021  DOWNLOAD

 

Wellington Laboratories are pleased to support U.S. EPA Draft Method 1633 for the analysis of PFAS in aqueous, solid, biosolid and tissue samples by releasing compatible prime stock solutions.  To offer the greatest degree of flexibility with other applications, a series of native (PFAC-MXF, PFAC-MXG, PFAC-MXH, PFAC-MX1, PFAC-MXJ) and mass-labelled (MPFAC-HIF-ES and MPFAC-HIF-IS) stock solutions have been prepared.  These mixtures can be diluted and/or combined to achieve the spiking and calibration solutions recommended by the method.

Mass-Labelled PFAS

Wellington Reporter PFAS

Wellington Laboratories PFAS

Wellington Laboratories PFAS

Wellington Laboratories PFAS

Wellington Laboratories PFAS

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Wellington Laboratories PFAS

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 Wellington Laboratories PFAS

Wellintgton Laboratories PFAS

Wellington Laboratories PFAS

Wellington Laboratories PFAS

Mass Labelled PFAS Injection Standards

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

 Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

 Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standards

 Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

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Wellington Labor5atories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

 

 Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAs Standard

Wellington Laboratories PFAS Standard

Wellington Standards PFAS

Wellington Laboratories Standard PFAS

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standards

Wellington Laboratories PFAS Standards

wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standard

Wellington Laboratories PFAS Standards

Wellington Laboratories PFAs Standards

CONTACT US  

Tel:        +44 (0) 151 649 4000  

Web:     www.greyhoundchrom.com  

Email:   marketing@greyhoundchrom.com  

FOLLOW US  

Facebook Icon Twitter Icon Instagram Icon LinkedIn Icon   

YOU MAY ALSO BE INTERESTED IN OUR NEWSLETTER  

SIGN UP HERE  

Greyhound Monthly Newsletter  

CATALOGUE DOWNLOADS  

PFAS EBook Image PFAS Environmental EBook

Greyhound Q-Fil catalogue  Greyhound reference standards guide   Trajan GC Supplies catalogue

 Greyhound Chromatography Q-Range Vials Catalogue Image  Wellington Laboratories Catalogue 2021-2023   Chem Service Catalogue Image 

 

Q-RANGE MLG PURE WATER | Greyhound Chromatography
Q-RANGE MLG PURE WATER | Greyhound Chromatography