SPECIATION OF BUTYLTINS IN FISH AND SEDIMENT BY MEANS OF GAS-CHROMATOGRAPHY WITH FLAME PHOTOMETRIC DETECTION

被引：23

作者：

MARTINLANDA, I ^{[1
]}

PABLOS, F ^{[1
]}

MARR, IL ^{[1
]}

机构：

[1] UNIV SEVILLE,FAC CHEM,DEPT ANALYT CHEM,E-41012 SEVILLE,SPAIN

来源：

APPLIED ORGANOMETALLIC CHEMISTRY | 1991年 / 5卷 / 05期

关键词：

ORGANOTIN DETERMINATION; GAS CHROMATOGRAPHY; FISH SAMPLES; SEDIMENT SAMPLES; SPECIATION;

D O I：

10.1002/aoc.590050506

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A modified method for the determination of tributyl-, dibutyl-, and monobutyl-tin in fish and sediment samples is proposed. The samples are digested with hydrochloric acid and the butyltin compounds are extracted into a tropolone solution in pentane and pentylated by a Grignard reaction. The products are cleaned up by washing with a sodium hydroxide solution, dried over sodium sulphate, concentrated by evaporation and analysed by gas chromatography with flame photometric detection, using an interference filter at 610 nm. Problems peculiar to the fish and sediment samples are overcome by this improved clean-up procedure. The limit of detection for tributyltin in fish is 0.04-mu-g g-1 and the reproducibility at 0.06-mu-g g-1, expressed as the relative standard deviation, is 6.8%. Contaminated sediment samples were found to contain the mixed methylbutyl-tin compounds Me2BuSn+ and MeBu2Sn+.

引用

页码：399 / 407

页数：9

共 39 条

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