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Title
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Determination of vanadium, molybdenum and tungsten in chloralkali electrolysis brines by x-ray fluorescence spectrometry
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Author
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Abstract
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| The levels of vanadium, molybdenum and tungsten are critical in chloralkali electrolysis brines because these elements catalyze the hydrogen-producing side-reaction. Preconcentration by chelation with 8-quinolinol and subsequent adsorption on activated carbon, can be combined with energy- or wavelength-dispersive x-ray fluorescence. Under optimized conditions, the detection limits are in the μg 1-1 range, and below the critical levels. Up to 100 /smg l-1, reliable results are obtained for V, Mo and W. The coefficient of variation is typically 15% in the 25100 μg l-1 range. |
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Language
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English
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Source (journal)
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Analytica chimica acta. - Amsterdam, 1947, currens
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Publication
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Amsterdam
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1981
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ISSN
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0003-2670
[print]
1873-4324
[online]
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DOI
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10.1016/S0003-2670(01)84100-3
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Volume/pages
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128
(1981)
, p. 207-212
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ISI
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A1981LX40500023
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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