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四川省工业卫生研究所
收稿日期:1980-03-10,
纸质出版日期:1982-06
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李福德, 强志永, 邓国伦, 等. 大气和生物样品中14C分析方法的研究[J]. 核技术, 1982,05(3):1-5,16.
Fude Li, Zhiyong Qiang, Guolun Deng, et al. A method for monitoring of 14C in the atmospheric and biological samples[J]. Nuclear techniques, 1982, 05(3): 1-5,16.
本文叙述一种监测大气和生物样品中
14
C的分析方法,包括由样品制备CO
2
,CO
2
经Li
2
C
2
制成C
2
H
2
,C
2
H
2
被CrO
3
活化的Si-A1催化剂转化为苯。苯的产额大于80%,经气相色谱分析鉴定苯的纯度优于色谱级苯。方法简便、快速、准确,适用于监测环境样品中
14
C。
This paper reports a method for monitoring of
14
C in the atmospheric and biological samples. The method involves preparation of carbon dioxide produced from the samples. Acetylene is produced from carbon dioxide sample by lithium carbide formation. A silica-alumina catalyst activated by chromic anhydride employed for the conversion of acetylene to benzene is used. The yield of benzene is about 80% and its purity checked by gas chromatography analysis is better than chromatographic grade benzene. The method is convenient
quick and accurate for monitoring of
14
C in environmental samples.
United Nations Scientific Committee on the Effects of Atomic Radiation , Ionizing radiation: Levels and effects, Vol .1, Levels , United Nation, New Youk , 1972 , p 42 .
贝时璋 , 原子能科学技术 , 4 , 163 ( 1960 ).
A. S. Goldin and J. G. Jr. Terrill , Health Phys. , 11 , 385 ( 1965 ).
NIRS , Radioactivity Survey Data, in Japan , 19 , 14 ( 1968 ).
Office of Radiation Programs Enviromental Protection Agency , Radiation Data and Reports , 14 , P. 679 , 1973 .
D. W. Hayes and K. W. Macmurdo , Health phys. , 32 , 215 ( 1977 ).
四川工卫所 14 C组 和 四川大学真空组 , 真空技术 , 7 , 324 ( 1978 ).
H. A. Polach and J. J. Stipp , Inter . J. Appl. Radiat. Isotopes , 18 , 359 ( 1967 ).
G. Belluomini et al . , Inter. J. Appl. Radiat. Isotopes , 29 , 453 ( 1978 ).
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