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Flow-injection extraction spectrophotometric determinatin of chromium(VI) with the benzyltributylammonium cation

✍ Scribed by S.A. Barakat; D.Thorburn Burns; Michael Harriott

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 309 KB
Volume: 272
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(93)80384-w

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✦ Synopsis

Chrommm(V1) can be determmed spectrophotometncally at 365 nm after flow-mjectlon extraction mto chloroform of the ion associate benzyltr~butyhunmonmm dlchromate The tamer stream was distilled water, merged with 10 M sulphunc acid solution, the reagent stream was 0 5% (w/v) benzyltnbutylammonmm chlonde solution The mJectlon rate was 20 h-' The cahbratlon graph was lmear up to 20 pg ml-' and the detection hnut (3 X baseline noise) was 0 5 pg ml-' CrWI) based on 25Oql lwectlon volumes The system has been applied to the determination of chronuum m steels

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