On-line isotachophoresis. A selective sample pretreatment prior to column liquid chromatographic analysis

P.J.M. Hendriks, H.A. Claessens, T.H.M. Noij, F.M. Everaerts, C.A. Cramers

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Abstract

The anal. of compds. which are present in low concns. in complex sample matrixes is often hampered by the lack of adequate sample pretreatment methods. In this study isotachophoresis (ITP) is presented as a selective sample pretreatment technique for ionic substances prior to HPLC anal. It is shown that the ITP sample treatment and the HPLC anal. step can easily be operated in an online mode, which greatly facilitates automation. Detn. of bentazone in Et acetate extd. water samples is demonstrated
Original languageEnglish
Pages (from-to)539-545
JournalChromatographia
Volume33
Issue number11-12
DOIs
Publication statusPublished - 1992

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