Melwanki M B, Seetharamappa Jaldappa
Department of Chemistry, Karnatak University, Dharwad 580 003, India.
Indian J Environ Health. 2003 Jan;45(1):25-8.
Isothipendyl hydrochloride is proposed as a sensitive and selective reagent for the rapid spectrophotometric determination of chromium(VI). The reagent instantaneously gives a red coloured species on reaction with chromium(VI) in phosphoric acid medium which exhibits maximum absorbance at 510 nm with Sandell's sensitivity of 2.28 ng cm(-2). Beer's law is valid over the concentraction range of 0.1-1.9 mg/l with an optimum concentration range of 0.2-1.7 mg/l. The method has been successfully applied to the analysis of chromium in environmental samples.
盐酸异西喷地被提议作为一种灵敏且选择性好的试剂，用于快速分光光度法测定六价铬。该试剂在磷酸介质中与六价铬反应时能立即生成一种红色物质，此物质在510 nm处有最大吸光度，桑德尔灵敏度为2.28 ng cm⁻²。比尔定律在0.1 - 1.9 mg/L的浓度范围内有效，最佳浓度范围为0.2 - 1.7 mg/L。该方法已成功应用于环境样品中铬的分析。
