Tributyltin in seawater: Speciation and octanol-water partition coefficient

被引：118

作者：

Laughlin Jr., R.B. ^{[1
]}

Guard, H.E. ^{[1
]}

Coleman III, W.M. ^{[1
]}

机构：

[1] University of California, Naval Biosciences Laboratory, Naval Supply Center, Oakland, CA 94625, United States

来源：

Environmental Science and Technology | 1986年 / 20卷 / 02期

关键词：

NUCLEAR MAGNETIC RESONANCE - TIN COMPOUNDS - Chemical Analysis;

D O I：

10.1021/es00144a016

中图分类号：

学科分类号：

摘要：

Analysis of chloroform extracts of tributylin (TBT) dissolved in seawater shows that the equilibrium mixture of speciation products is composed of tributyltin chloride (TBTCl), tributyltin hydroxide (TBTOH), the aquo complex (TBTOH//2** plus ) (as a function of pH), and a tributyltin carbonato species. The equilibrium distribution is influenced by left bracket Cl** minus right bracket , dissolved CO//2, and pH is easily displaced by variation within the environmental concentration range of these substances. Octanol-water partition coefficients for tributyltin vary as a function of salinity. The lowest value, 5500, was measured in 25% and increased in higher or lower salinities to a maximum of 7000 in deionized water.

引用

页码：201 / 204