SOME IMPROVED TECHNIQUES FOR MEASURING RADON AND RADIUM IN MARINE-SEDIMENTS AND IN SEAWATER

被引：57
作者：
KEY, RM
BREWER, RL
STOCKWELL, JH
GUINASSO, NL
SCHINK, DR
机构：
[1] Department of Oceanography, Texas A and M University, College Station
来源：
MARINE CHEMISTRY | 1979年 / 7卷 / 03期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0304-4203(79)90042-2
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
By careful sampling and sample processing, radon and radium may be determined in close-spaced sediment segments. These determinations permit estimation of the radon deficit in sea-floor sediments. Collecting radium on manganese-treated fiber greatly simplifies analysis of near-bottom waters. Some improved radon separation and counting techniques are described. With these methods a single operator can process four samples for radon in 140 min. Overall efficiency (extraction-transfer-counting) is 88%. Blanks are negligible. Reproducibilities of 2.6% and 3.8% are achieved for radium and radon, respectively. © 1979.
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页码：251 / 264
页数：14
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