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Blog posts tagged with 'perfluoronated compounds'

Mass Labelled Perfluorobutanesulfonate M3PfBS | Wellington Laboratories Reference Standards | Greyhound Chromatography
Mass Labelled Perfluorobutanesulfonate M3PfBS | Wellington Laboratories Reference Standards | Greyhound Chromatography
New Listing of Chemicals under Stockholm Convention | Greyhound Chromatography

New Listing of Chemicals: Persistent Organic Pollutants (POPs)  under the  Stockholm Convention

 

Plastic Waste Stockholm Convention

Governments agree landmark decisions to protect people and planet from hazardous chemicals and waste, including plastic waste

The two new chemicals listed in Annex A to the Stockholm Convention are the pesticide Dicofol, and Perfluorooctanoic acid (PFOA) its salts and PFOA-related compounds (some applications with time-limited exemptions). Listing in Annex A to the Convention obliges Parties to eliminate these chemicals from use. The two chemicals are listed on the basis of a robust review process addressing risks, management options and alternatives by the UN’s POPs Review Committee. Dicofol is used as a miticide on a variety of field crops, fruits, vegetables, ornamentals and tea and coffee and is known to cause skin irritation and hyperstimulation of nerve transmissions in humans as well as being highly toxic to fish, aquatic invertebrates, algae and birds. PFOA is a widely-used industrial chemical used in the production of non-stick cookware and food processing equipment, as well as a surfactant in textiles, carpets, paper, paints and fire-fighting foams. As a substance of very high concern, it is known to be linked to major health problems including kidney cancer, testicular cancer, thyroid disease and hypertension in pregnancy. More information on these chemicals is available in factsheets at: http://chm.pops.int/tabid/243/Default.aspx

View the Full article below. 

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Governments agree landmark decisions to protect people and planet from hazardous chemicals and waste, including plastic waste

 

Plastic Waste Stockholm Convention

 

Geneva, 10 May 2019 - Decisions on plastic waste have been reached today in Geneva, as approximately 180 governments adopted a raft of decisions aimed at protecting human health and the environment from the harmful effects of hazardous chemicals and waste.

Pollution from plastic waste, acknowledged as a major environmental problem of global concern, has reached epidemic proportions with an estimated 100 million tonnes of plastic now found in the oceans, 80-90% of which comes from land-based sources1. Governments this week amended the Basel Convention to include plastic waste in a legally-binding framework which will make global trade in plastic waste more transparent and better regulated, whilst also ensuring that its management is safer for human health and the environment. At the same time, a new Partnership on Plastic Waste was established to mobilise business, government, academic and civil society resources, interests and expertise to assist in implementing the new measures, to provide a set of practical supports – including tools, best practices, technical and financial assistance - for this ground-breaking agreement.

Other far-reaching decisions from the two weeks included the elimination of two toxic chemical groups, which together total about 4,000 chemicals, listed into Annex A of the Stockholm Convention, namely Dicofol and Perfluorooctanoic Acid (PFOA) and its salts and PFOA-related compounds. The latter has till now been used in a wide variety of industrial and domestic applications including non-stick cookware and food processing equipment, as well as a surfactant in textiles, carpets, paper, paints and fire-fighting foams.

Important progress was also made under the Rotterdam Convention, which provides a legally-binding framework for information exchange and informed decision-making in the trade of certain hazardous pesticides and industrial chemicals. Two chemicals, the pesticide phorate and the industrial chemical hexabromocyclododecane were added to Annex III of the convention, making them subject to the Prior Informed Consent (PIC) Procedure, through which countries can decide on future imports of these chemicals. A further decision, to approve procedures and mechanisms on compliance with the Rotterdam Convention – seen as a crucial step for further improving implementation of this key convention - was adopted with great appreciation by Parties.

Working for two weeks in Geneva under the theme of “Clean Planet, Healthy People: Sound Management of Chemicals and Waste”, approximately 1,400 delegates from around 180 countries converged for the meetings of the Conferences of Parties to the Basel, Rotterdam and Stockholm conventions (Triple COPs). Participants benefited from the numerous opportunities and events to exchange information on alternatives to these chemicals, as well as best practices.

Speaking at the closing session of the Triple COPs, Rolph Payet, Executive Secretary (UNEP) of the three conventions, said that “I’m proud that this week in Geneva, Parties to the Basel Convention have reached agreement on a legally-binding, globally-reaching mechanism for managing plastic waste. Plastic waste is acknowledged as one of the world’s most pressing environmental issues, and the fact that this week close to 1 million people around the world signed a petition urging Basel Convention Parties to take action here in Geneva at the COPs is a sign that public awareness and desire for action is high.

We were able to list two out of 7 candidate chemicals and will continue working closely with parties to identify feasible alternative solutions to hazardous pesticides, taking due account of food security and market access aspects” added Hans Dreyer, Executive Secretary (FAO) of the Rotterdam Convention.

Notes for Editors:

The Basel Convention on the Control of Transboundary Movements of Hazardous Waste and their Disposal is the most comprehensive international environmental agreement on hazardous and other wastes and is almost universal, with 187 Parties. With an overarching objective of protecting human health and the environment against the adverse effects of hazardous wastes and other wastes, its scope covers a wide range of wastes defined as “hazardous” based on their origin and/or composition and characteristics, as well as two types of wastes defined as “other wastes” – household waste and incinerator ash. See www.basel.int

Plastic Waste

With an estimated 100 million tonnes of plastic in our seas, 80-90% of which has come from land-based sources, the high public profile of this issue is understandable. Reducing waste generation at source, and improving waste management thereafter, would go a long way towards solving this problem. For more on this see:  http://www.brsmeas.org/?tabid=4332&blogId=5169 and http://www.brsmeas.org/tabid/7656/Default.aspx

The Rotterdam Convention on the Prior Informed Consent Procedure (PIC) for Certain Hazardous Chemicals and Pesticides in International Trade, is jointly administered by the United Nations Food and Agriculture Organization (FAO) and UN Environment (UNEP). The 161 Parties to this legally-binding Convention share responsibility and cooperate to safely manage chemicals in international trade. As of the end of this COP, 52 chemicals and pesticides are listed in its Annex III. The Convention does not introduce bans but facilitates the exchange of information among Parties on hazardous chemicals and pesticides, and their potential risks, to inform and improve national decision making. In addition, through the PIC Procedure, it provides a legally-binding mechanism to support national decisions on the import of selected chemicals and pesticides in order to minimize the risk they pose to human health and the environment. See www.pic.int

Listing of Chemicals: Pesticides and Industrial Chemicals under the Rotterdam Convention

The newly-listed chemicals are phorate (a pesticide) and hexabromocyclododecane (an industrial chemical) these chemicals would be included in the prior informed consent (PIC) procedure enabling better-informed decision-making on the trade in chemicals, thereby protecting human health and the environment. More information on these chemicals is available at: http://www.pic.int/tabid/1185/Default.aspx

The Stockholm Convention on Persistent Organic Pollutants is a global treaty to protect human health and the environment from chemicals that remain intact in the environment for long periods, become widely distributed geographically, accumulate in the fatty tissue of humans and wildlife, and have harmful impacts on human health or on the environment. Exposure to Persistent Organic Pollutants (POPs) can lead to serious health effects including certain cancers, birth defects, dysfunctional immune and reproductive systems, greater susceptibility to disease and damage to the central and peripheral nervous systems. The Convention requires its Parties to take measures to eliminate or reduce the release of POPs into the environment. As of today, this legally-binding Convention has 182 Parties, giving it almost universal coverage. As of the end of this COP, 30 chemicals of global concern are listed under the Stockholm Convention. See www.pops.int

Listing of Chemicals: Persistent Organic Pollutants (POPs) under the Stockholm Convention

The two new chemicals listed in Annex A to the Stockholm Convention are the pesticide Dicofol, and Perfluorooctanoic acid (PFOA) its salts and PFOA-related compounds (some applications with time-limited exemptions). Listing in Annex A to the Convention obliges Parties to eliminate these chemicals from use. The two chemicals are listed on the basis of a robust review process addressing risks, management options and alternatives by the UN’s POPs Review Committee. Dicofol is used as a miticide on a variety of field crops, fruits, vegetables, ornamentals and tea and coffee and is known to cause skin irritation and hyperstimulation of nerve transmissions in humans as well as being highly toxic to fish, aquatic invertebrates, algae and birds. PFOA is a widely-used industrial chemical used in the production of non-stick cookware and food processing equipment, as well as a surfactant in textiles, carpets, paper, paints and fire-fighting foams. As a substance of very high concern, it is known to be linked to major health problems including kidney cancer, testicular cancer, thyroid disease and hypertension in pregnancy. More information on these chemicals is available in factsheets at: http://chm.pops.int/tabid/243/Default.aspx

For BRS conventions general media enquiries see: www.brsmeas.org or contact:
Charlie AVIS, Public Information Officer (UN Environment), Geneva 
+41-79-730-4495

 Full article courtesy of www.brsmeas.org

 

 


1 Data from “Marine litter plastics and microplastics and their toxic chemicals components: the need for urgent preventive measures” by Frederic Gallo et. al. in Environmental Sciences Europe 2018; 30(1): 13, at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5918521/

 

 

 

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New Branched Perfluoroalkyl Reference Standards

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It is well documented that many environmental samples contain both branched and linear isomers of perfluoroalkyl carboxylic acids and perfluoroalkanesulfonate salts.  In response to customer requests for quantitative reference standards for these compounds, wellington Laboratories has synthesized additional branched perfluoroalkyl compounds (P3MHpA, P4MOA, and NaP3MHpS) to complement their currently available selection of standards.  A typical commercial sample of perfluorooctanesulfonic acid (PFOS) contains 5% and 11% of NaP3MHpS and NaP6MHpS respectively.  Similarly, technical mixtures of perfluorooctanoic acid (PFOA) contain approximately 3% of P3MHpA.  It is hoped that the continued introduction of certified branched perfluoroalkyl reference standrds will aid researchers in the analysis of these compounds in environmental and biological samples.

Wellington Reporter Extract

Wellington Reporter May 2019

Wellington Reporter Discontinued Products 

Wellington Reporter Logo Image

PRODUCT DISCONTINUED

P44DMHxS

Unfortunately, P44DMHxS (a mixture of perfluoro-4-4-dimethylhexane sulfonate and perfluoro-4-4-dimethylhexanoic acid) is being discontinued due to limited interest and a lack of inventory. However, these compounds are identified as minor components in our br-PFOSK/T-PFOS and T-PFOA reference standards respectively. We apologize for any inconvenience this may cause and appreciate your understanding. 

Wellington Reporter Fig 1. Image

 

 

 

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About Wellington Laboratories

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.

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.

 

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Development of extraction and cleanup approaches for PFASs analysis in fish tissue by HPLC-MS/MS technique | Wellington Laboratories | Greyhound Chromatography

Development of extraction and cleanup approachesfor PFASsanalysis in fish tissue by HPLC-MS/MS technique

A V Sorokin, V V Ovcharenko, K A Turbabina, A I Kozhushkevich, A M Kalantaenko, A A Komarov

The Russian State Center for Quality and Standardization of Veterinary Drugs and Feed (VGNKI), Moscow, Russia, 123022

 

Abstract. The history of PFASs emergence and current status in the context of the Stockholm Convention on POPs, their environmental distribution and toxicity are discussed. Various approaches to PFASs analysis in fish tissues are discussed. An original method of sample preparation is described, which allows quantitative PFASs determination at 0.2 – 100 ppb levels.

  1.   Introduction

Perfluorinated compounds (PFASs), classified according to the recommended terminology [1], are a large family of technogenic contaminants. The family consist of different compound classes, such as carboxylates, sulfonates, sulfonamides, alcohols and etc., of which carboxylates and sulfonates are most often analysed in laboratories. PFASs started to emerge into the environment in the late 40s as by-products of Teflon development by DuPont. Teflon was approved by FDA for kitchenware coating in 1962, and Zonyl was approved for food packaging in 1967. At present, PFASs are used in textile industry, paper production, as components in various resins, foams, etc. Accordingly, perfluorooctanoic acid (PFOA) (Fig. 1) was first detected in the blood samples of factory personnel in 1978, and in the ground water in 1984. Due to toxicity concerns, some companies stopped producing 8-carbon PFAS since 2000.

 

 Structure of Perfluoroctanoic Acid

PFASs are stable contaminants capable of bioaccumulation, they are detected in animal tissues. At present, the worldwide production of PFASs has been reduced due to information about their potential health risks, including risks of cancer promotion. According to the European Union data on PFAS in food collected in 2006 – 2012, perfluoroalkanesulfonates (PFSAs) and perfluoroalkylcarboxylicacids (PFCAs) are the most widespread food contaminants. PFSAs were mostly found in fish, meat, drinking water and fruits. The highest levels were detected in liver samples.

High levels of PFCAs and PFSAs were found in marine mammals feeding on fish in such industrially developed areas as the Baltic Sea, Mediterranean, the Great Lakes, and along the South East Asia coast, but also in such remote areas as Alaska and the Antarctic (Table 1).

 

Detectable concentration of PFSAs and PFCAs 

 Structure of General PFASs

Most common approaches to PFASs extraction and cleanup involve methanol, acetonitrile, and their mixtures with acidic or alkaline modifications followed by SPE cleanup on commercial sorbents.  Here we report on the determination of perfluorinated carboxylates and sulfonates in medium-fat fish tissues using an alternative method of lipids removal described below.

2.  Materials and Methods

2.1.  Chemicals and Standards

All chemicals were of analytical grade and obtained from Sigma-Aldrich, Fluka and Merck companies. The PFASs standards (PFPeA, PFHxA, PFHpA, PFOA, PFNA, PFDA, PFUdA, PFDoA, PFTrDA, PFTeDa, PFHxDA, PFODA, PFBS, PFPeS, PFHxS, PFHpS, PFOS, PFNS, PFDS, PFDoS) and labeled standards were obtained from Wellington Laboratories. Blank fish samples were obtained from a local commercial source. Oasis WAX cartridges (3 cc, 60 mg) were obtained from Waters. The Reacti-Therm (heating and stirring module, Thermo) was used for concentration step.

DOWNLOAD THE FULL PAPER HERE  PDF

Acknowledgement for publication to: 

A V Sorokin, V V Ovcharenko, K A Turbabina, A I Kozhushkevich, A M Kalantaenko, A A Komarov

The Russian State Center for Quality and Standardization of Veterinary Drugs and Feed (VGNKI), Moscow, Russia, 123022

 

 

You May Also be Interested in

New Branched Perfluoroalkyl Reference Standards

Wellington Laboratories logo

It is well documented that many environmental samples contain both branched and linear isomers of perfluoroalkyl carboxylic acids and perfluoroalkanesulfonate salts.  In response to customer requests for quantitative reference standards for these compounds, wellington Laboratories has synthesized additional branched perfluoroalkyl compounds (P3MHpA, P4MOA, and NaP3MHpS) to complement their currently available selection of standards.  A typical commercial sample of perfluorooctanesulfonic acid (PFOS) contains 5% and 11% of NaP3MHpS and NaP6MHpS respectively.  Similarly, technical mixtures of perfluorooctanoic acid (PFOA) contain approximately 3% of P3MHpA.  It is hoped that the continued introduction of certified branched perfluoroalkyl reference standrds will aid researchers in the analysis of these compounds in environmental and biological samples.

Wellington Reporter Fig.1

Wellington Reporter May 2019

Wellington Reporter Discontinued Products 

PRODUCT DISCONTINUED

P44DMHxS

Unfortunately, P44DMHxS (a mixture of perfluoro-4-4-dimethylhexane sulfonate and perfluoro-4-4-dimethylhexanoic acid) is being discontinued due to limited interest and a lack of inventory. However, these compounds are identified as minor components in our br-PFOSK/T-PFOS and T-PFOA reference standards respectively. We apologize for any inconvenience this may cause and appreciate your understanding. 

Wellington Reporter Fig 2 Image

 

 

 

 

About Wellington Laboratories

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.

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

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Reference Materials for Environmental Analysis | Greyhound Chromatography | Wellington Laboratories

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In response to customer requests for an expanded selection of certified environmental reference materials (ERMs), Wellington conducted an interlaboratory study in 2018 and was able to characterize three separate fish materials for select persistent organic pollutants .

Certified analyte concentrations were derived using data received from at least 10 analytical laboratories accredited to ISO/IEC 17025 and data were statistically analyzed using the Q-method/Hampel estimator ( robust method, ISO 13528:2015).

As a result, Wellington Laboratories are pleased to add WMF-02, WMF-03 and WMF-EX to their product line of Environmental Reference Materials

Wellington Laboratories currently offers the following certified reference materials (CRMs) for use in testing an analytical laboratories ability to generate accurate and reproducible data using real, as opposed to fortified samples.

The following CRMs are currently offered:

WMF-02 "Freeze Dried" Fish Tissue (Naturally Fortified Salmon 27% Lipid)

WMF-03 "Freeze Dried" Fish Tissue (Low Level Salmon - 30% Lipid)

CARP-2: Fish Tissue for Organic Contaminant Analysis.

WMF-EX Fish Tissue Extract (Isoctane/20% Salmon Oil

More details on each of these CRMs, including the analytes and their certified values, are given in the Wellington Laboratories catalogue. Pages 148-150.

Wellington Laboratories Reference Standards are supplied by Greyhound Chromatography and Allied Chemicals, 6 Kelvin Park, Birkenhead, Merseyside, CH41 1LT.

Buy On-line www.greyhoundchrom.com

 

In response to customer requests for an expanded selection of certified environmental reference materials (ERMs), Wellington conducted an interlaboratory study in 2018 and was able to characterize three separate fish materials for select persistent organic pollutants .

Certified analyte concentrations were derived using data received from at least 10 analytical laboratories accredited to ISO/IEC 17025 and data were statistically analyzed using the Q-method/Hampel estimator ( robust method, ISO 13528:2015).

As a result, Wellington Laboratories are pleased to add WMF-02, WMF-03 and WMF-EX to their product line of Environmental Reference Materials

 

 

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2,2',3,3',4,5,5',6,6'-Nonabromo-4'-chlorodiphenyl ether Certified Reference Standards | | Greyhound Chromatography | Wellington Laboratories
2,2',3,3',4,5,5',6,6'-Nonabromo-4'-chlorodiphenyl ether | Greyhound Chromatography Certified Reference Standards
6:2/8:2diPAP Polyfluorinated Phosphate Esters (PAPs) | Wellington Laboratories| Greyhound Chromatography
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1,3,6,8-Tetrachloro-9H-carbazole Certified Reference Standard | Greyhound Chromatography
1,3,6,8-Tetrachloro-9H-carbazole Certified Reference Standard | Greyhound Chromatography
2,3,6,7-Tetrachloro-9H-carbazole Certified Reference Standard | Wellington Laboratories |Greyhound Chromatography
2,3,6,7-Tetrachloro-9H-carbazole Certified Reference Standard | Greyhound Chromatography
3-Bromo-9H-carbazole Certified Reference Standard | Greyhound Chromatography
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