SPECTROPHOTOMETRIC DETERMINATION OF TOTAL VICINAL DIKETONES WITH ISONIAZIDE AND A ZIRCONIUM SALT

被引：3

作者：

GARCIAVILLANOVA, RJ ^{[1
]}

ESTEPA, RMG ^{[1
]}

机构：

[1] UNIV GRANADA,FAC FARM,DEPT NUTR & BROMATOL,E-18012 GRANADA,SPAIN

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 347卷 / 6-7期

关键词：

D O I：

10.1007/BF00323972

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method has been worked out for the spectrophotometric determination of total vicinal diketones. It is based on the distillation of diacetyl and/or 2,3-pentanedione, the subsequent condensation with isoniazide (yielding the corresponding hydrazones), the complexation with zirconium(IV) and the photometric measurement of the resulting yellow complexes at 410 nm. The two reactions were studied separately. Variables such as pH, heating time, and excess reactives are discussed. The method may be used for the determination of these compounds in foods.

引用

页码：276 / 279

页数：4

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