摘要:
本文采用萃取色层-纸色层分离,然后用低本底流气式正比计数器测量食品中钷-147的新方法。首次用该方法成功地分析了我国14个省区十大类食品样品中钷-147含量,平均化学回收率81.4%,标准差4.9%,分析测定的最低检测限约6.7×10-3Bq/g灰。方法具有简便、可靠、干扰少等优点,能直接用于各种食品及其它环境样品中钷—147的测定。
Abstract:
Analytical method of promethium-147 in 63 kinds of food were reported. The food included grain, potatoes, meat, vegetable, egg, bean, tea, fruit aquatic product and milk and the samples were collected from 14 provinces in China, promethium-147 was purified by precipitation as oxalate, HDEHP extraction chromatography. And paper chromatography Promethium-147 was measured with flow counter.
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