A Study of the Ultra-Sensitive Colour Reaction for Determining Trace Amounts of Silicon

Abstract

Abstract: An ultra-sensitive colour reaction based on the multicomponent complex, of siliconvanadomolybdate blue-Rhodamine Bin aqueous phase has been investigated. The maximum absorption wavelength of the complex is at 595nm. Beer's law is obeyed for silicon in the range from o to 0.7μg/25mL. The apparent molar absorptivity is 1.10 ×10⁶L·mol^-1·cm^-1 at 595nm. This method has been applied to,the determination of trace amount of silicon in different water with satisfactory results.

Key words: Determination of trace amounts of silicon, Multicomponent complex of siliconvanadomolybdate blue-Rhodamine B, Spectrophotometry, Ultra-sensitive colour reaction

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Li Shihe, Li Shengquan, Liu Changsong. A Study of the Ultra-Sensitive Colour Reaction for Determining Trace Amounts of Silicon[J]. Chem. J. Chinese Universities, 1988, 9(10): 998.

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A Study of the Ultra-Sensitive Colour Reaction for Determining Trace Amounts of Silicon

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