PROBLEMS AND METHODS OF DATING LOW-ACTIVITY SAMPLES BY LIQUID SCINTILLATION-COUNTING

被引：37
作者：
ARSLANOV, KA
TERTYCHNAYA, TV
CHERNOV, SB
机构：
[1] Geographical Research Institute, St. Petersburg State University
来源：
RADIOCARBON | 1993年 / 35卷 / 03期
关键词：
D O I：
10.1017/S0033822200060409
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The important Problem of contamination of old samples by younger C-14 necessitates treatment of organic and carbonate samples to ensure more complete removal of contaminating carbon. Here we present studies of chemical procedures for the liquid scintillation method of C-14 dating undertaken since 1960 in the former USSR. We discuss new procedures such as lithium carbide synthesis from charred organic samples and benzene synthesis on a V2O5.Al2O3.SiO2 catalyst, as well as memory effect in the carbide synthesis procedure and characteristics of two homemade counters.
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页码：393 / 398
页数：6
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