P. Bastard

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A method for analysing traces of nitrites is described. The method is based on the diazotization of a heteroaromatic primary amine-4-methyl-7-aminocoumarin (Coumarin 120((R)))-by nitrite ions in acidic medium. A large excess of Coumarin 120((R)) is mandatory for a quantitative reaction. The corresponding in-situ-produced diazonium salt is stable at room(More)
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