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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25 citations
TL;DR: A proposed reference method for serum creatinine has been developed under the auspices of the Committee on Reference Methods and Reference Materials of the Canadian Society of Clinical Chemists and demonstrated a statistically significant high bias in interlaboratory studies in which this procedure was used for reference.
25 citations
TL;DR: A new sensitive colour reaction for nitrite determination is presented, based on the reaction of nitrite with p-aminobenzoic acid to form a diazonium ion, which is coupled with 8-hydroxyquinoline, in alkaline medium, to forms a reddish-orange water-soluble azo dye.
25 citations
TL;DR: A rapid, selective and sensitive cloud point extraction process using the nonionic surfactant, Triton X-114, to extract phosphorus in the form of orthophosphate from aqueous solutions was investigated and optimum parameters were established.
25 citations
TL;DR: The reaction is selective for methyldopa with 0.01 mg/ml as visual limit of quantitation and provides a basis for a new spectrophotometric determination of tolerable amount of other drugs.
Abstract: Methyldopa reacts with barbituric acid to give a red colour having maximum absorbance at 540 nm. The reaction is selective for methyldopa with 0.01 mg/ml as visual limit of quantitation and provides a basis for a new spectrophotometric determination. The colour reaction obeys Beer's Law from 0.1 mg to 2.5 mg/10 ml of methyldopa and the relative standard deviation is 1.1%. The quantitative assessment of tolerable amount of other drugs is also studied.
25 citations