Detection Of Chromium Research Articles

Simple Paper Chromatographic Method for Rapid Detection of Chromate(VI) in Fresh Water

Abstract A simple concentration method for detection of potassium (di)chromate directly in fresh water is described. Interference from acidity, alkalinity, or the presence of salt is eliminated by neutralization with phosphate buffer. A simple and sensitive method for potassium chromate or dichromate(VI) separation and detection by paper chromatography is also described. Succinate dehydrogenase inhibition with 2-(4-iodophenyl)-3-(4-nitrophenyl)-5- phenyltetrazolium chloride (INT)-phenazonium methosulfate (PMS)-sodium succinate mixture as the chromogenic reagent is the detection technique. An acetone-water-EDTA solvent system allows enzymatic detection of potassium (di)chromate in fresh water with the least cleanup effort: 2 μg can be detected by a spot test or 5 μg may be chromatographically detected directly from fresh water.

Chlorpromazine hydrochloride as an analytical reagent : Part 1. Spot tests for inorganic ions

Chlorpromazine hydrochloride is proposed as a spot test reagent for the detection of gold, cerium, iron, chromate, manganate, bromate, iodate, nitrite, bromide, iodide, platinum and palladium. Conditions for the suppression of certain interfering substances are also given.

Studies in qualitative inorganic analysis. Part XVII

The factors affecting the detection of chromate and dichromate in the presence of each other have been investigated.Feigl's suggested tests are used, and it is shown that there are limiting pH conditions at which the tests function, if carried out on solutions.