Column preconcentration of organotin with tropolone-immobilized and their determination by electrothermal atomization absorption spectrometry

被引：28

作者：

Bermejo-Barrera, P ^{[1
]}

Gonzalez-Campos, G ^{[1
]}

Ferron-Novais, M ^{[1
]}

Bermejo-Barrera, A ^{[1
]}

机构：

[1] Univ Santiago de Compostela, Fac Chem, Dept Analyt Chem Nutr & Bromatol, Santiago De Compostela 15706, Spain

来源：

TALANTA | 1998年 / 46卷 / 06期

关键词：

organic tin; tropolone; amberlite XAD-2; ETAAS;

D O I：

10.1016/S0039-9140(98)00021-6

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学]; 081704 [应用化学];

摘要：

A method far the determination of total organic tin from marine water samples by electrothermal atomization absorption spectrometry (ETAAS) is described. Samples are previously preconcentrated with a chelating molecule (tropolone) impregnated on a macroporous polymer (Amberlite XAD-2). The graphite furnace programme and preconcentration parameters were optimized. Calibration and addition graphs were performed. Sensitivity obtained with this procedure was 13 ng l(-1). Relative standard deviation was always > 10% and analytical recovery were satisfactory, similar to 100%. Some possible interferences were investigated, having no problems with this factor. This procedure allows the distinction between organotin compounds and inorganic tin IV, since the latter is not retained on the column. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：1479 / 1484

页数：6

共 23 条

[1]

ABEL R, 1986, P OCEANS 86 ORGANOTI, V4, P1314

[2]

ENHANCED IONIC RECOGNITION BY POLYMER-SUPPORTED REAGENTS - SYNTHESIS AND CHARACTERIZATION OF ION-EXCHANGE PRECIPITATION RESINS [J].