PYRIDINE-2-ALDEHYDE PARA-NITROPHENYLHYDRAZONE AS AN INDICATOR FOR COLORIMETRIC PH MEASUREMENTS

被引：8

作者：

CARRILLO, J

GUZMAN, M

机构：

[1] Department of Analytical Chemistry, Faculty of Sciences, University of Sevilla, Sevilla

来源：

MICROCHEMICAL JOURNAL | 1979年 / 24卷 / 02期

关键词：

D O I：

10.1016/0026-265X(79)90126-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Pyridine-2-aldehyde p-nitrophenylhydrazone is suggested as an indicator for colorimetric pH measurements in the high-alkaline range. Absorption spectra and indicator constant have been determined. Color change interval and other indicator characteristics have been established. A visually distinguishable transition and a good stability of color are obtained. © 1979.

引用

页码：234 / 238

页数：5

共 8 条

[1]

CHUGREEVA NV, 1960, ZH ANAL KHIM, V15, P391

[2] NEW INDICATOR FOR COMPLEXOMETRIC TITRATION OF CALCIUM IN PRESENCE OF MAGNESIUM [J].