DETERMINATION OF TRIBUTYLTIN IN SEA-WATER BY HYDRIDE GENERATION-ATOMIC ABSORPTION SPECTROMETRY

被引:8
作者
CHEN, JJ [1 ]
LOU, YC [1 ]
WHANG, CW [1 ]
机构
[1] TUNGHAI CHRISTIAN UNIV,DEPT CHEM,TAICHUNG 40703,TAIWAN
关键词
TRIBUTYLTIN COMPOUNDS; SEA WATER; HYDRIDE GENERATION-ATOMIC ABSORPTION SPECTROMETRY;
D O I
10.1002/jccs.199200079
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A hydride generation-atomic absorption spectrometric (HG-AAS) procedure is described for the analysis of tributyltin (TBT) in sea water. TBT is first converted to its volatile hydride form by reaction with sodium borohydride, followed by cryogenic trapping at -196-degrees-C, and finally detection by atomic absorption spectrometry using an electrically heated quartz atomization cell. The linear range of calibration is 5-250 ng TBT (as tin). At the 5-ng level, the relative standard deviation (RSD) is 13%. The absolute detection limit (3sigma) is 1.8 ng. Based on a sample volume of 500 mL, this value corresponds to a concentration detection limit 3.6 ng L-1 TBT. This method has been successfully applied to the analysis of TBT in sea water collected from Keelung and Kaohsiung harbors.
引用
收藏
页码:461 / 464
页数:4
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