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Low-level determination of I-129 in environmental samples by neutron activation

被引：15
作者：
Tseng, CL
Chao, JH
机构：
[1] Nucl. Sci. and Technol. Devmt. Ctr., National Tsing Hua University, Hsinchu
来源：
APPLIED RADIATION AND ISOTOPES | 1996年 / 47卷 / 08期
关键词：
D O I：
10.1016/0969-8043(96)00035-8
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Low-level determination of I-129 and I-129/I-127 ratio in environmental samples by neutron activation is described. The iodine was chemically separated from kombu (Laminaria japonica) samples by solvent extraction and subsequent reduction to an inorganic form prior to neutron irradiation, the activated I-126 and I-130 were measured by a germanium gamma-ray spectrometer after irradiation with a cooling time of 16 h. The lowest detection amount is estimated to be 10(-3) Bq or a corresponding I-129/I-127 ratio of 10(-11). The average I-129/I-127 ratio for kombu samples, collected from local markets, was found to be 10(-10), lower than those of terrestrial samples reported elsewhere. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码：723 / 726
页数：4
相关论文
共 15 条
[1]  
AUMANN DC, 1981, RADIOCHIM ACTA, V29, P209
[2]   I-129 IN MAN, COW AND DEER [J].
BALLAD, RV ;
TAN, SH ;
JOHNSON, JE ;
HOLMAN, DW ;
HENNECKE, EW ;
MANUEL, OK .
HEALTH PHYSICS, 1978, 34 (06) :691-696
[3]   IODINE-129 IN THYROIDS OF GRAZING ANIMALS [J].
BALLAD, RV ;
HOLMAN, DW ;
HENNECKE, EW ;
JOHNSON, JE ;
MANUEL, OK ;
NICHOLSON, LM .
HEALTH PHYSICS, 1976, 30 (04) :345-350
[4]   MEASUREMENTS OF NATURAL CONCENTRATIONS OF I-129 IN URANIUM ORES BY ACCELERATOR MASS-SPECTROMETRY [J].
BOARETTO, E ;
BERKOVITS, D ;
HOLLOS, G ;
PAUL, M .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 50 (1-4) :280-285
[5]   LIMITS FOR QUALITATIVE DETECTION AND QUANTITATIVE DETERMINATION - APPLICATION TO RADIOCHEMISTRY [J].
CURRIE, LA .
ANALYTICAL CHEMISTRY, 1968, 40 (03) :586-&
[6]   IODINE-129 - ITS OCCURRENCE IN NATURE AND ITS UTILITY AS A TRACER [J].
EDWARDS, RR .
SCIENCE, 1962, 137 (3533) :851-&
[7]   BIOSPHERIC I-129 CONCENTRATIONS IN THE PRE-NUCLEAR AND NUCLEAR-AGE [J].
HANDL, J ;
OLIVER, E ;
JAKOB, D ;
JOHANSON, KJ ;
SCHULLER, P .
HEALTH PHYSICS, 1993, 65 (03) :265-271
[8]   MEASUREMENTS OF I-129 IN HUMAN AND BOVINE THYROIDS IN EUROPE TRANSFER OF I-129 INTO THE FOOD-CHAIN [J].
HANDL, J ;
PFAU, A ;
HUTH, FW .
HEALTH PHYSICS, 1990, 58 (05) :609-618
[9]   EVAPORATION OF IODINE FROM OCEAN [J].
MIYAKE, Y ;
TSUNOGAI, S .
JOURNAL OF GEOPHYSICAL RESEARCH, 1963, 68 (13) :3989-+
[10]   I-129 AND I-127 IN ENVIRONMENTAL-SAMPLES COLLECTED FROM TOKAIMURA IBARAKI, JAPAN [J].
MURAMATSU, Y ;
OHMOMO, Y .
SCIENCE OF THE TOTAL ENVIRONMENT, 1986, 48 (1-2) :33-43
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