... of perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), in particular, pose potential adverse effects for the environment and human health. Due to exposure risk and the likelihood of these detrimental impacts, PFOS ... "perfluorinated alkyl acid analysis", PFOS, PFOA...
... of perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), in particular, pose potential adverse effects , PFOS and PFOA have both come under regulatory scrutiny, and many countries have restricted their use ... or focus just on PFOA and PFOS, the excellent peak shapes and separations achieved here result ... PFOS, PFOA, perfluorinated alkyl acid analysis...
Integrating the Analysis of Ultrashort-Chain PFAS: Method Development for Simultaneous Analysis of Ultrashort-Chain, Alternative, and Legacy PFAS (PDF 1101kB)
..., which are perfluoroalkyl ether carboxylic acids used as PFOA substitutes. Similarly, F-53B is a PFOS L of internal standard solution (5 ng/mL of 13C2-PFHxA, 13C2-PFOA, 13C4-PFOS in methanol). The vial was capped...
...]octanesulfonic acid (13C4-PFOS) 5.57 10 503.0 80.0 13. Perfluorooctanesulfonic acid (PFOS) 5.58 10 498.9 80 S isomers PFOS isomers NMeFOSAA isomers NEtFOSAA isomers 3 www.restek.com Figure 2: The Raptor C18...
ChromaBLOGraphy: What are GenX and PFBS? Why are they important in PFAS analysis?
Analysis of PFAS (per- and polyfluorinated alkyl substances) has been a hot topic for envoironmental labs for the last several years. Currently there are two C8 based PFAS compounds (PFOA and PFOS) with a health advisory level of 70 ppt in drinking water announced by the US EPA. In 2018 at the National Leadership Summit, […]
....98 13. Perfluorononanoic acid (PFNA) 4.19 5 463.16 419.19 14. Perfluorooctane sulfonic acid (PFOS) 4...
Integrating the Analysis of Ultrashort-Chain PFAS Method Development for Simultaneous Analysis of Ultrashort-Chain, Alternative, and Legacy PFAS
..., which are perfluoroalkyl ether carboxylic acids used as PFOA substitutes. Similarly, F-53B is a PFOS /mL of 13C2-PFHxA, 13C2-PFOA, 13C4-PFOS...
... sulfonic acid (PFOS) 4.21 5 499.17 79.98 15. 2-Perfluorooctyl ethanoic acid (FOEA) 4.31 250 477.17 393...
....19 14. Perfluorooctane sulfonic acid (PFOS) 4.21 5 499.17 79.98 15. 2-Perfluorooctyl ethanoic acid...
ChromaBLOGraphy: The 33rd International Symposium on Halogenated Persistent Organic Pollutants, Dioxin 2013
The last week of August I attended the POP symposium in the steamy Daegu, Korea. With over 500 attendees representing 42 countries the technical content was both informative and interesting. The conference mainly focuses on persistent organic pollutants named in the Stockholm convention. These include several organochlorine pesticides, polychlorinated dibenzo-p-dioxins (PCDD), polychlorinated dibenzofurans (PCDF), polychlorinated […]
...) and perfluorooctane sulfonic acid (PFOS ? These are two compounds that have been made within the last 10 years to replace PFOA and PFOS. There are still...
ChromaBLOGraphy: Nobel Laureate Talks and Restek Champagne Reception
From July 19th – 22nd 2016 Restek Corporation with the collaboration of the German Restek Office (Restek GmbH) attended the 39th ISEAC conference, organized from the “International Association of Environmental Analytical Chemistry” (IAEAC) at the Hamburg School of Food Science, lead by Prof. Dr. Markus Fisher. The central subject of the ISEAC-39 conference is the innovative use […]
ChromaBLOGraphy: 7th International Symposium on Recent Advances in POPs Analysis
As mentioned in a previous blog, I was able to attend the 7th International POPs Symposium sponsored by Thermo Scientific at the Auditorium Santa Margherita in Venice, Italy and present work done on GC-HRMS analysis of chlorinated dioxins and furans on the Rtx-Dioxin2. The symposium was a veritable Who’s Who of noted scientists in POPs [...]