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PTR-TOF MS를 활용한 Poly- and Perfluoroalkyl Substances(PFAS) 분석
글쓴이	관리자	작성일	2023-08-18 17:43	조회수	322
The detection and quantification of Poly- and Perfluoroalkyl Substances (PFAS) has recently become one of the hottest topics in analytical chemistry [1]. Many of these omnipresent "forever chemicals" are connected to serious health concerns and thus have been subject to increasingly stringent restrictions [1]. So far, the vast majority of analytical PFAS studies have been performed offline, utilizing time-consuming GC and LC based techniques [2]. While these methods may be the gold-standard for spot sampling, they render online compound monitoring impossible. Here, we present first results of a comprehensive series of real-time direct-injection PTR-MS studies on PFAS: findings on the ion chemistry, experimentally determined Limits-of-Detection (LoDs) and a proof-of-concept indoor air study. We utilized an off-the-shelf PTR-TOF 6000 with a mass resolution of about 6000 m/Δm and a sensitivity of about 2000 cps/ppbv. As all IONICON PTR-TOFMS instruments come with TRU-E/N® ion chemistry, also for this feasibility study no compound specific calibration is necessary for quantification. 출처 : https://www.ionicon.com/blog/2023/pfas-real-time-measurement-with-ptr-tofms 관련 제품 바로가기 (클릭)

PTR-TOF MS를 활용한 Poly- and Perfluoroalkyl Substances(PFAS) 분석

글쓴이

관리자

작성일

2023-08-18 17:43

조회수

322

The detection and quantification of Poly- and Perfluoroalkyl Substances (PFAS) has recently become one of the hottest topics in

analytical chemistry [1]. Many of these omnipresent "forever chemicals" are connected to serious health concerns and thus have been

subject to increasingly stringent restrictions [1]. So far, the vast majority of analytical PFAS studies have been performed offline, utilizing

time-consuming GC and LC based techniques [2]. While these methods may be the gold-standard for spot sampling, they render online

compound monitoring impossible.

Here, we present first results of a comprehensive series of real-time direct-injection PTR-MS studies on PFAS: findings on the ion

chemistry, experimentally determined Limits-of-Detection (LoDs) and a proof-of-concept indoor air study.

We utilized an off-the-shelf PTR-TOF 6000 with a mass resolution of about 6000 m/Δm and a sensitivity of about 2000 cps/ppbv. As all

IONICON PTR-TOFMS instruments come with TRU-E/N® ion chemistry, also for this feasibility study no compound specific calibration

is necessary for quantification.