2-(2-THIAZOLYLAZO)-P-CRESOL (TAC) AS A REAGENT FOR THE SPECTROPHOTOMETRIC DETERMINATION OF TITANIUM(IV)

被引：14

作者：

FERREIRA, SLC ^{[1
]}

COSTA, ACS ^{[1
]}

ANDRADE, HAS ^{[1
]}

机构：

[1] PONTIFICIA UNIV CATOLICA,DEPT QUIM,BR-22453 RIO JANEIRO,BRAZIL

来源：

MIKROCHIMICA ACTA | 1993年 / 111卷 / 1-3期

关键词：

2-(2-THIAZOLYLAZO)-P-CRESOL; TITANIUM DETERMINATION; SIMULTANEOUS DETERMINATION;

D O I：

10.1007/BF01240174

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The reaction between titanium(IV) and 2-(2-thiazolylazo)-p-cresol-(TAC) in aqueous methanol media at apparent pH 4.0 5.6 results in a intensely coloured complex that is stable for at least 2 h. The combining ratio is 1 : 1 cation: TAC. Beer's law is obeyed up to 5.0 mug/ml titanium(IV) at 580 nm. The apparent molar absorptivity at 580 nm is 9.82. 10(3) l.mole-1.cm-1 and the detection limit obtained was 5 ng//ml titanium(IV). A spectrophotometric method for the simultaneous determination of titanium and iron with TAC is proposed.

引用

页码：119 / 125

页数：7