CAESIUM RETENTION CHARACTERISTICS OF KNIFC-PAN RESIN FROM RIVER WATER
CAESIUM RETENTION CHARACTERISTICS OF KNIFC-PAN RESIN FROM RIVER WATER
复制标题
河水中刀盘树脂的铯保留特性
DOI：
10.1093/rpd/ncaa109
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发表时间：
2020
影响因子：
1
通讯作者：
Tokonami Shinji
中科院分区：
文献类型：
--
作者：
Hegedus Miklos;Tazoe Hirofumi;Yang Guosheng;Tamakuma Yuki;Hosoda Masahiro;Akata Naofumi;Tokonami Shinji
在2.5-400 mL min−1的范围内，在淡水中测试了聚丙烯腈（KNiFC-PAN）基质中的六氰基铁酸钾镍树脂的铯保留特性。实验设置使用2 mL树脂和4 L淡水样品等分试样。结果显示，在低于10 mL min−1的速度下，保留率接近100%，在高达100 mL min−1时，保留率高于80%，在400 mL min−1时，保留率接近50%。在井型HPGe检测器中使用100 mL min− 1流速和KNiFC-PAN树脂，对于4 L等分试样的水样，最低可检测浓度从之前通过Powdex离子交换树脂和平面型HPGe检测器实现的15 mBq kg − 1降低到3 mBq kg− 1。
The caesium retention characteristics of a potassium-nickel hexacyanoferrate resin in a polyacrylnitrile (KNiFC–PAN) matrix were tested in fresh water over the range of 2.5–400 mL min−1. The experimental setup used 2 mL resin and 4-L aliquots of freshwater samples. The results showed nearly 100% retention at speeds below 10 mL min−1, above 80% up to 100 mL min−1, and approached 50% at 400 mL min−1. Using 100 mL min−1flow rate and KNiFC–PAN resin in a well-type HPGe detector, the minimum detectable concentration was reduced to 3 mBq kg−1for 4-L aliquots of water samples from the previous 15 mBq kg−1achieved by Powdex ion-exchange resin and a planar type HPGe detector.