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Rapid Perfluorinated Alkyl Acid Analysis by LC-MS/MS Increases Sample Throughput (PDF 640kB)

... of perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), in particular, pose potential adverse effects and PFOA have both come under regulatory scrutiny, and many countries have restricted their use ... "perfluorinated alkyl acid analysis", PFOS, PFOA...

Rapid Perfluorinated Alkyl Acid Analysis by LC-MS/MS Increases Sample Throughput

... 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...

Eliminate the Impact of Instrument-Related PFAS Interferences by Using a Delay Column (PDF 761kB)

... PFOA Peaks tR (min) Precursor Ion Product Ion 1. Perfluorooctanoic acid (PFOA) 3.75 413.2 369.1 2 .00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 PFDoA PFUnA PFDA PFNA PFOA 5 4 3 2 1 Time (min) Conc...

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, […]

Raptor C18 LC Columns Brochure (PDF 2375kB)

.... Perfluorooctanoic acid (PFOA) 3.81 5 413.16 369.10 12. Perfluoroheptane sulfonic acid (PFHpS) 3.84 5 449.17 79...

Restek LC Guard Column Selector: How to Find the Right Guard Fast (PDF 2037kB)

....17 407.18 11. Perfluorooctanoic acid (PFOA) 3.81 5 413.16 369.10 12. Perfluoroheptane sulfonic acid...

Diagnosing and Preventing High Back Pressure Problems in LC Systems (PDF 5850kB)

...-perfluorooctane sulfonic acid (6:2 FTS) 3.78 5 427.17 407.18 11. Perfluorooctanoic acid (PFOA) 3.81 5 413.16 369.10 12...

Frequently Asked Questions: HPLC and UHPLC

..., municipal refuse, and landfill leachates. Two of the most common PFAS are perfluorooctanoic acid (PFOA ? 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 [...]

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Perfluorinated Alkyl Acids (PFBS, PFOA, PFOS, and HFPO-DA/GenX) on Raptor C18 5 μm

LC_EV0553

Column: Raptor C18 (cat.# 9304552), Dimensions:50 mm x 2.1 mm ID, Particle Size: 5 µm, Pore Size: 90 Å, Temperature: 40 °C
Detector: MS/MS

Perfluorinated Alkyl Acids on Raptor C18 by LC-MS/MS for EPA Method 537

LC_EV0548

Column: Raptor C18 (cat.# 9304552), Dimensions:50 mm x 2.1 mm ID, Particle Size: 5 µm, Pore Size: 90 Å, Temperature: 40 °C
Detector: MS/MS

Perfluorinated Compounds (PFCs) on Raptor C18 (1.8 μm)

LC_EV0540

Column: Raptor C18 (cat.# 9304252), Dimensions:50 mm x 2.1 mm ID, Particle Size: 1.8 µm, Pore Size: 90 Å, Temperature: 40 °C
Detector: MS/MS

Perfluorinated Compounds (PFCs) on Raptor C18 (1.8 μm)

LC_EV0547

Column: Raptor C18 (cat.# 9304252), Dimensions:50 mm x 2.1 mm ID, Particle Size: 1.8 µm, Pore Size: 90 Å, Temperature: 40 °C
Detector: MS/MS

Perfluorooctanoic Acid (PFOA) and Perfluorooctanesulfonic Acid (PFOS) on Raptor C18 by LC-MS/MS

LC_EV0536

Column: Raptor C18 (cat.# 9304512), Dimensions:100 mm x 2.1 mm ID, Particle Size: 5 µm, Pore Size: 90 Å, Temperature: 40 °C
Detector: MS/MS

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