Freezing of sediments inappropriate for pore water selenium analysis

被引：7
|
作者：
Jung, RF
Batley, GE
机构：
[1] CSIRO, Ctr Adv Analyt Chem, Bangor, NSW 2234, Australia
[2] Energy Technol, Bangor, NSW 2234, Australia
来源：
MARINE POLLUTION BULLETIN | 2004年 / 49卷 / 04期
关键词：
pore water; selenium; sediments; sediment freezing;
D O I：
10.1016/j.marpolbul.2004.02.015
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The common practice of freezing sediment cores for later chemical investigation was shown to be inappropriate for samples containing selenium. Pore waters from frozen estuarine sediment cores contained up to eighty times the selenium content of those extracted from chilled but unfrozen cores. Experiments suggested that the increase in selenium concentrations resulted from rupturing the cells of selenium-accumulating bacteria present in the samples. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：295 / 298
页数：4
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