Topic
Color reaction
About: Color reaction is a research topic. Over the lifetime, 1194 publications have been published within this topic receiving 19579 citations.
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TL;DR: In this paper, a combination of magnetic solid phase extraction with a designed portable photometer based on light-emitting diodes is suggested for on-site determination of trace amount of nitrite in atmospheric liquids and surface water.
5 citations
TL;DR: A new method was applied to licorice, and a colour reaction with rhodamine dyes was developed for the detection and estimation of glycyrrhizic acid.
Abstract: A new method is described for the determination of glycyrrhizic acid. Paper chromatography was applied to licorice, and a colour reaction with rhodamine dyes was developed for the detection and estimation of glycyrrhizic acid.
5 citations
5 citations
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TL;DR: In this paper, a spectrophotometric method for the determination of microgram amounts of some carbohydrates, thiocarbonyls and hydrazines was developed based on the reaction of these compounds with either cerium (IV) or dichromate.
Abstract: A spectrophotometric method for the determination of microgram amounts of some carbohydrates, thiocarbonyls and hydrazines was developed. It is based on the reaction of these compounds with either cerium (IV) or dichromate. The excess oxidant is allowed to react with iron (II) as a reductant and hexacyanoferrate (III) to develop Prussian blue colour with maximum absorption at 700 nm. The optimum procedural conditions and stoichiometry are investigated. Analysis of sample sizes down to 50 μg shows an average recovery of 97% and a relative standard deviation of 1%.
5 citations