PROCEDURE FOR PRESERVING LEAD IN DRINKING-WATER SAMPLES

被引:0
|
作者
FELDMANN, CR [1 ]
WALASEK, JB [1 ]
LOBRING, LB [1 ]
机构
[1] US EPA,ENVIRONM MONITORING & SUPPORT LAB,OFF RES & DEV,CINCINNATI,OH 45268
来源
JOURNAL AMERICAN WATER WORKS ASSOCIATION | 1992年 / 84卷 / 07期
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中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The US Environmental Protection Agency's requirement that drinking water samples collected for lead analysis be acidified at the time of collection poses two problems: (1) restrictions on mailing nitric acid and (2) safety concerns associated with the possible handling of nitric acid by nontechnical persons. A study was undertaken that showed that acidification could be delayed up to 14 days and that analysis could then be carried out after waiting 28 h, without loss of lead.
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页码:89 / 91
页数:3
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