On-site determination of tin in geological and water samples using novel organic reagent with iodide

被引：15

作者：

Agrawal, Kavita ^{[1
,2
]}

Patel, Khageshwar Singh ^{[1
]}

Shrivas, Kamlesh ^{[2
]}

Jain, Virendra Kumar ^{[3
]}

Khan, Fahmida ^{[2
]}

机构：

[1] Pt Ravishankar Shukla Univ, Sch Studies Chem, Raipur 492010, Madhya Pradesh, India

[2] Natl Inst Technol, Dept Chem, Raipur 492010, Madhya Pradesh, India

[3] Directorate Geol & Min, Raipur 492006, Madhya Pradesh, India

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 164卷 / 01期

关键词：

Tin; Iodide; N-Octylacetamide; Spectrophotometry; Water; Geological; SPECTROPHOTOMETRIC DETERMINATION; EXTRACTION SEPARATION; MIXED SURFACTANTS; CANNED FOODS; ACID;

D O I：

10.1016/j.jhazmat.2008.07.124

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A new, simple and sensitive method for spectrophotometric determination of tin (IV) with iodide and amide is described. The Sn(IV)-I(-) complex is extracted with chloroform solution of amide (N-phenylacetamide, N-alkylacetamide, alkyl = butyl, phenyl, hexyl and octyl group) in the strong sulphuric acid solution. Among five amides studied, N-octylacetamide (OAA) has been selected as it yielded best sensitivity. The apparent (at twofold preconcentration) molar absorptivity with respect to tin is (2.40) x 10(5) Lmol(-1) cm(-1) at lambda(max), 410 nm. The detection limit of the method is 4 mu g L(-1) Sn. The method is free from interferences of common ions that are normally associated with Sn. The method is highly sensitive and found to be applicable for the rapid determination of tin in water samples at micro-gram levels. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：95 / 98

页数：4

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