Simultaneous spectrophotometric determination of iron, titanium, and aluminum by partial least-squares calibration method in micellar medium

被引：17

作者：

Safavi, A ^{[1
]}

Mirzaee, M ^{[1
]}

Abdollahi, H ^{[1
]}

机构：

[1] Shiraz Univ, Dept Chem, Fac Sci, Shiraz 71454, Iran

来源：

ANALYTICAL LETTERS | 2003年 / 36卷 / 03期

关键词：

simultaneous analysis; PLS method; iron; titanium; aluminum;

D O I：

10.1081/AL-120018258

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Simultaneous spectrophotometric determination of iron, titanium and aluminum was carried out using their morin (3,5,7,2',4'-penta hydroxy flavone) complexes in Triton X-100 micellar, medium. Partial least-squares regression was employed for the resolution of ternary mixtures of Fe, Ti, and Al. The presence of Triton X-100 micellar system avoids the solvent extraction step necessary for the formation of soluble morin complexes. The limits of detection obtained for Fe(III), Ti (IV), and for Al (III) were 0.03, 0.04, and 0.02 mug mL(-1), respectively. The relative standard error for applying the method to the analysis of 20 synthetic samples in the concentration ranges of 0.03 to 1.0 mug mL(-1) Al(III), 0.06 to 1.6mug mL(-1) Ti(IV), and 0.04 to 1.5 mug mL(-1) Fe(III) was 5%. Analysis of synthetic and artificial mixtures of solutions of several alloys was successfully performed by the method.

引用

页码：699 / 712

页数：14

共 28 条

[1] Simultaneous spectrophotometric determination of chromium(VI) and iron(III) with chromogenic mixed reagents by H-point standard addition method and partial least squares regression [J].