Resonance Rayleigh Scattering Method for the Determination of Trace Amounts of Molybdenum with Thiocyanate-basic Triphenylmethane Dye Systems

Abstract

Abstract: Studies on the resonance Rayleigh scattering (RRS) spectra of the ion association complexes of [MoO(SCN)₅]^2-were carried out with the basic triphenylmethane dye such as crystal violet (CV), ethyl violet (EV), malachite green (MG), brilliant green (BG) and iodine green (IG). The spectral characteristics, the effect factors and the optimum reaction conditions have been investigated. The quantitative relationships of the intensities of RRSto the concentration of molybdenum were established. The new and highly sensitive ways for the determination of molybdenum by RRShave been proposed. The methods can be applied to the determination of trace amounts of molybdenum in steel with satisfactory results.

Key words: Resonance Rayleigh scattering, Molybdenum, Thiocyanate, Basic triphenylmethane dyes

CLC Number:

O657.39

TrendMD:

LIU Shao-Pu, ZHOU Guang-Ming, LIU Zhong-Fang, LI Ming . Resonance Rayleigh Scattering Method for the Determination of Trace Amounts of Molybdenum with Thiocyanate-basic Triphenylmethane Dye Systems[J]. Chem. J. Chinese Universities, 1998, 19(7): 1040.

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Resonance Rayleigh Scattering Method for the Determination of Trace Amounts of Molybdenum with Thiocyanate-basic Triphenylmethane Dye Systems

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