IDENTIFICATION OF COPPER CONTAMINATION IN SEDIMENTS BY A MICROSCALE PARTIAL EXTRACTION TECHNIQUE

被引：11

作者：

MESUERE, K ^{[1
]}

MARTIN, RE ^{[1
]}

FISH, W ^{[1
]}

机构：

[1] OREGON GRAD INST,DEPT ENVIRONM SCI & ENGN,19600 VONNEUMANN DR,BEAVERTON,OR 97006

来源：

JOURNAL OF ENVIRONMENTAL QUALITY | 1991年 / 20卷 / 01期

关键词：

D O I：

10.2134/jeq1991.00472425002000010017x

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A H2O2/HNO3 microscale extraction procedure is described for the partial removal of metals from sediments. The procedure is carried out at room temperature for approximately 24 h, and requires only 50 mg of dried sample and 1 mL of extraction solution for a single extraction. The characteristics of the procedure were investigated in detail for Cu-contaminated sediment samples taken from stormwater runoff detention ponds and a background soil sample. The H2O2/HNO3 microextraction was compared to a more commonly employed HCl extraction. Taken collectively the data indicate that the procedure extracts Cu in excess of native levels in a systematic way over the range of total Cu concentration investigated. Copper concentrations derived by this method appear to be useful indicators of anthropogenic contamination provided an appropriate background sample is used to determine native levels of Cu.

引用

页码：114 / 118

页数：5