Kinetic determination of aromatic amines at millimolar level

被引：0
|
作者：
Lucian Copolovici
Ioan Baldea
机构：
[1] Department of Physical Chemistry,
[2] Faculty of Chemistry and Chemical Engineering,undefined
[3] "Babeş-Bolyai" University,undefined
[4] 11 Arany Janos St.,undefined
[5] Cluj-Napoca,undefined
[6] 3400,undefined
[7] Romania,undefined
来源：
Analytical and Bioanalytical Chemistry | 2002年 / 374卷
关键词：
Kinetic methods Aromatic amines Azo dye;
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摘要：
A kinetic method for the determination of aromatic amines is reported. The method involves the formation of an azo dye between 1-(4-hydroxy-6-methylpyrimidin-2-yl)-3-methylpyrazolin-5-one and a diazonium salt formed from the amine in the presence of nitrite in weakly acidic media. The reaction is monitored via the initial rate of change of the absorbance of the azo dye at 420 nm, because this is proportional to the aniline concentration.
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页码：13 / 16
页数：3
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