A study of iodine loss during the preparation and analysis of samples using I-131 tracer and neutron-activation analysis | |
Hou XL(侯小琳); Feng XQ(冯向前)![]() ![]() ![]() | |
刊名 | ANALYST
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1998 | |
卷号 | 123期号:10页码:2209-2213 |
通讯作者 | Risoe Natl Lab, DK-4000 Roskilde, Denmark ; Acad Sinica, Inst High Energy Phys, Beijing 100080, Peoples R China |
英文摘要 | The recoveries of various species of iodine, such as I-, IO3- and organic iodine, in the procedures of acid digestion, ashing, freeze-drying, evaporation drying and neutron irradiation were studied using I-131 tracer and instrumental neutron activation analysis. The recoveries of iodine were over 99% after drying at room temperature and 60-80 degrees C for various iodine species in all kinds of media. The organic iodine in various media, I- and IO3- in biological materials and IO3- in alkaline solution were not lost after freeze-drying, whereas I- in aqueous solution and IO3- in acidic and neutral solution were significantly lost. The recoveries of iodine were different under various acid digestion conditions. Under the optimum conditions, more than 96% of iodine remained in the digestion solution. With ashing, the recovery of iodine was less than 2%. Addition of alkali to the samples can significantly improve the iodine recovery, but the ashing is incomplete in this case. Only 90% of iodine was recovered using alkali ashing at 650 degrees C. Neutron irradiation did not cause any loss of iodine. |
学科主题 | Chemistry |
类目[WOS] | Chemistry, Analytical |
研究领域[WOS] | Chemistry |
原文出处 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000076453400049 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/239684] ![]() |
专题 | 高能物理研究所_院士 |
作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | Hou XL,Feng XQ,Qian QF,et al. A study of iodine loss during the preparation and analysis of samples using I-131 tracer and neutron-activation analysis[J]. ANALYST,1998,123(10):2209-2213. |
APA | 侯小琳.,冯向前.,钱琴芳.,柴之芳.,Hou, XL.,...&Chai, CF.(1998).A study of iodine loss during the preparation and analysis of samples using I-131 tracer and neutron-activation analysis.ANALYST,123(10),2209-2213. |
MLA | 侯小琳,et al."A study of iodine loss during the preparation and analysis of samples using I-131 tracer and neutron-activation analysis".ANALYST 123.10(1998):2209-2213. |
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