Spectrophotometric studies on the investigation of chromium in environmental samples.

M B Melwanki, Jaldappa Seetharamappa

Department of Chemistry, Karnatak University, Dharwad 580 003, India.

Indian journal of environmental health 2003 Jan

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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.

Citation

M B Melwanki, Jaldappa Seetharamappa. Spectrophotometric studies on the investigation of chromium in environmental samples. Indian journal of environmental health. 2003 Jan;45(1):25-8