Simultaneous determination of monofluoroacetate, difluoroacetate and trifluoroacetate in environmental samples by ion chromatography
journal contribution
posted on 2023-05-16, 15:34authored byWang, F, Gregory Dicinoski, Zhu, Y, Paul HaddadPaul Haddad
A method is reported for the sensitive, simultaneous determination of mono- (MFA), di- (DFA), and trifluoroacetates (TFA) by ion chromatography (IC). These species were separated using a Dionex AS17 anion-exchange column employed with a potassium hydroxide gradient (via a Dionex EG40 eluent generator) and suppressed conductivity detection. The fluoroacetates were successfully separated from a range of inorganic and organic species likely to be present in environmental samples, in a total analysis time of 35 min (including re-equilibration of the column). Detection limits for mono-, di- and trifluoroacetate were 21, 38 and 36 μg/l, respectively, determined using a signal-to-noise ratio of 3, and were obtained using a sample injection volume of 50 μl. Precision was less than 0.83% relative standard deviation (RSD) for replicate injections performed over a period of 30 days. The method was applied to the determination of monofluoroacetate in river water samples and also in carrot baits.
History
Publication title
Journal of Chromatography A
Volume
1032
Issue
1-2
Pagination
31-35
ISSN
0021-9673
Department/School
School of Natural Sciences
Publisher
Elsevier Science
Place of publication
Amsterdam
Rights statement
The definitive version is available at http://www.sciencedirect.com