SOLID-PHASE SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF VANADIUM AT SUB-NG/ML LEVEL WITH 4-(2-PYRIDYLAZO)RESORCINOL

被引：23

作者：

FERNANDEZDECORDOVA, ML

MOLINADIAZ, A

PASCUALREGUERA, MI

CAPITANVALLEY, LF

机构：

[1] UNIV JAEN,FAC EXPTL SCI,DEPT PHYS & ANALYT CHEM,E-23071 JAEN,SPAIN

[2] UNIV GRANADA,FAC SCI,DEPT ANALYT CHEM,E-18071 GRANADA,SPAIN

来源：

TALANTA | 1995年 / 42卷 / 08期

关键词：

D O I：

10.1016/0039-9140(95)01516-E

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Solid-phase spectrophotometry has been applied to analysis for trace amounts of vanadium. Vanadium was sorbed in a styrene-divinylbenzene-type anion-exchanger Dowex 1-X8 as a vanadium-4-(2-pyridylazo)resorcinol complex. Resin phase absorbances at 562 and 800 nm were measured directly which allowed the determination of vanadium in the range of 0.1-2.4 ng/ml with a RSD of 1.5%. The method has been applied to the determination of vanadium in different samples, namely toadstool tissue, mussel tissue, petroleum crudes and swamp water.

引用

页码：1057 / 1065

页数：9

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