Determination of molybdenum using 1,5-diphenylcarbazone immobilized on silica |
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| Authors: | O A Zaporozhets T E Keda L E Seletskaya V V Sukhan |
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| Institution: | (1) Department of Chemistry, Shevchenko State University, Kiev, Vladimirskaya ul. 64, 252033 Kiev, Ukraine |
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| Abstract: | The sorption of 1,5-diphenylcarbazone on highly dispersed silica from toluene and acetone-hexane (1:4) solutions was studied.
The nature of the bonding of the reagent with the surface of silica gel was studied by absorption spectrometry. A solid-phase
reagent is proposed for the sorption-diffuse-reflection and visual test determinations of down to 0.025 and 0.05 μg/L molybdenum(VI),
respectively. The procedures were used for the determination of molybdenum in sea salt and a medicinal preparation. |
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