Determination of molybdenum(VI) in sea water by densitometry after enrichment as the Tiron complex on a thin layer of anion-exchange resin

A rapid, simple and sensitive method for the determination of trace amounts of molybdenum in sea water was developed based on the enrichment of molybdenum as a yellow Tiron complex by a thin layer of anion-exchange resin, followed by densitometric scanning of the thin layer. There were no interferen...

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Veröffentlicht in:Analyst (London) 1985, Vol.110 (2), p.125-129
Hauptverfasser: SHRIADAH, M. M. A, KATAOKA, M, OHZEKI, K
Format: Artikel
Sprache:eng
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Zusammenfassung:A rapid, simple and sensitive method for the determination of trace amounts of molybdenum in sea water was developed based on the enrichment of molybdenum as a yellow Tiron complex by a thin layer of anion-exchange resin, followed by densitometric scanning of the thin layer. There were no interferences from trace elements or major constituents of sea water, except for chromium and vanadium. These were reduced by the addition of ascorbic acid. The concentration of dissolved molybdenum(VI) determined in Japanese sea water was 11.5 ug per litre with a relative standard deviation of 1.1 per cent.
ISSN:0003-2654
1364-5528
DOI:10.1039/an9851000125