SPECTROPHOTOMETRIC DETERMINATION OF ANTIMONY WITH VANILLYLFLUORONE IN THE PRESENCE OF POLY(VINYL ALCOHOL)

被引：7

作者：

MORI, I

FUJITA, Y

TOYODA, M

KATO, K

FUJITA, K

OKAZAKI, Y

机构：

[1] Osaka University of Pharmaceutical Sciences, Matsubara-shi, Osaka

来源：

TALANTA | 1991年 / 38卷 / 03期

关键词：

D O I：

10.1016/0039-9140(91)80060-D

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Antimony in the range up to 2.5-mu-g/ml in the final solution is determined spectrophotometrically with vanillylfluorone in the presence of poly(vinyl alcohol) in acidic media. The method is compared with that using o-hydroxyhydroquinonephthalein (Qnph). It is simple, rapid and sensitive, without need for heating or solvent extraction, and the apparent molar absorptivity (epsilon) is 5.0 x 10(4) 1.mole-1.cm-1 at 545 nm; for the Qnph method epsilon is 2.8 x 10(4) 1.mole-1.cm-1 at 520 nm. Tests with an artificial wastewater gave 99-103% recovery.

引用

页码：343 / 345

页数：3

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