Direct-injection suppressed ion chromatography-mass spectrometry with online preconcentration for short- and ultra short-chain perfluoroalkyl carboxylic acids in fresh water
Abstract
(ppt) of the PFCAs (C2-C6) analyzed and were comparable to those of other LC-MS and GC-MS methods. The precision of this method ranged from 0.4-7.6% for all the PFCAs (C2-C6). An advantage of this method is that small samples sizes under 1 mL can be used. This method was applied to real freshwater samples including tap water, precipitation, lake water, and river water. TFA was detectable in most of the samples with online pre-concentration and no other additional pretreatment sample preparation; however, method performance decreased in samples with high conductivity. A new unidentified isobaric interferent for TFA was present in most of the freshwater samples.
Fields of Study & Subjects
Per- and polyfluoroalkyl substances research
Toxic Organic Pollutants Impact
Environmental Chemistry and Analysis
Publication details
- Journal / source
- Analytical Methods
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 18
- Issue
- 17
- Pages
- 3600–3611
- Publication date
- 1 January 2026
- Language
- EN