ADDITIONAL STUDY OF THE DIRECT METHANOL-LSC METHOD FOR LOW-LEVEL C-14 MEASUREMENT

被引：5

作者：

SHIBATA, S ^{[1
]}

KAWANO, E ^{[1
]}

NAKABAYASHI, T ^{[1
]}

YAMADA, O ^{[1
]}

机构：

[1] KYOTO SANGYO UNIV,FAC SCI,KITA KU,KYOTO 603,JAPAN

来源：

APPLIED RADIATION AND ISOTOPES | 1993年 / 44卷 / 12期

关键词：

D O I：

10.1016/0969-8043(93)90105-J

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

When methanol for C-14 liquid scintillation measurement is prepared directly from carbonized samples through combustion and LiAlH4 reduction, solvent-originating methanol is likely to form in small amounts. We have modified the combustion condition to use an N2-O2 mixture of minimized O2 content, and have made negligible the formation of solvent-originating methanol. Measurements of C-14 concentrations in rice grains, anthracite and NIST standard sample demonstrate the validity of our method as a convenient technique for low-level C-14 measurement.

引用

页码：1491 / 1493

页数：3

共 8 条

[1]

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[2]

LEVIN I, 1989, RADIOCARBON, V31, P431

[3]

NYSTROM RF, 1948, J AM CHEM SOC, V70, P440

[4]

SHIBATA S, 1985, Annual Report of the Radiation Center of Osaka Prefecture, V26, P115