✦ LIBER ✦

Speciation of butyltin compounds by ion chromatography coupled to electrothermal atomic absorption spectrometry

✍ Scribed by F Pannier; X Dauchy; M Potin-Gautier; A Astruc; M Astruc

Publisher: John Wiley and Sons
Year: 1993
Tongue: English
Weight: 458 KB
Volume: 7
Category: Article
ISSN: 0268-2605
DOI: 10.1002/aoc.590070309

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✦ Synopsis

A new method for the determination of butyltin species by ion-exchange chromatography linked with graphite-furnace electrothermal atomic absorption spectrometry (ETAAS) is presented. The separation is achieved on a strong cationexchange column with a 0.18 mol dm-3 solution of diammonium citrate at pH 6.5 with a step change to pH4.0 in 60:40 methanol/water solvent. ETAAS detection is performed on-line using an oxidizing matrix modifier. Mono-, di-and tributyltin may be determined in a single experiment with detection limits of (respectively) 0.5, 1.1 and 0.8ng (Sn). Applications to actual samples are reported.

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