A study of iodine loss during the preparation and analysis of samples using I-131 tracer and neutron-activation analysis

	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); Qian QF(钱琴芳); Chai ZF(柴之芳); Hou, XL; Feng, XQ; Qian, QF; Chai, CF
刊名	ANALYST
	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.