Flow-injection analysis (FIA) system incorporating in-valve solid-phase extraction microcolumn for on-line separation and preconcentration using a new resin, U/TEVA.Spec, has been proposed for the spectrophotometric determination of uranium in geological samples using 4-(2-pyridylazo) resorcinol (PA
A Review on Molybdenum Determination in Solid Geological Samples
β Scribed by Arabinda K. Das; Ruma Chakraborty; M. Luisa Cervera; Miguel De la Guardia
- Publisher
- John Wiley and Sons
- Year
- 2007
- Weight
- 11 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0931-7597
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A sensitive visual colorimetric method has been developed for the semiquantitative field determination of trace molybdenum. The molybdenum-catalyzed oxidation of ascorbic acid at pH 3.2 in the presence of ophenylenediamine was used as the indicator reaction, which produces yellow quinoxaline derivat
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