文章基本信息

标题：Spectrophotometric Determination of Trace Amounts of Molybdenum(VI) Using Salicylaldehyde Acetoacetic Acid Hydrazone
本地全文：下载
作者：V. Srilalitha ; A. Raghavendra Guru Prasad ; K. Raman Kumar 等
期刊名称：Universitatea Politehnica din Timisoara. Buletinul Stiintific. Seria Chimie si Ingineria Mediului
印刷版ISSN：1224-6018
出版年度：2010
卷号：55(69)
期号：02
出版社：Universitatea Politehnica din Timisoara
摘要：A simple, sensitive and accurate spectrophotometric method was proposed for the micro determination of molybdenum(VI) using salicylaldehyde acetoacetic acid hydrazone (SAAH) as a reagent. The method was based on the formation of 1:2 complex between the molybdenum(VI) and SAAH. The optimum conditions for the determination were established. The Beer’s law was applicable in the range 0.097 to 0.968 μg/mL. The molar absorption coefficient, Sandell’s sensitivity and stability constant (β) of the complex were found to be 160.00 × 103 L mol^-1 cm^-1, 5.998 × 10^–4 μg cm^–2 and 1.425 × 1010 respectively. The influence of interferences on the proposed method was studied and presented. The method was successfully applied for the determination of synthetic mixtures and alloys containing molybdenum(VI).
关键词：Molybdenum(VI); salicylaldehyde acetoacetic acid hydrazone; spectrophotometric method; alloys