Rapid determination of I-129 in large-volume water samples using rotary evaporation preconcentration and accelerator mass spectrometry measurement
Rapid determination of I-129 in large-volume water samples using rotary evaporation preconcentration and accelerator mass spectrometry measurement
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采用旋转蒸发预浓缩和加速器质谱测量快速测定大体积水样中的 I-129
DOI：
10.1007/s10967-018-6180-y
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发表时间：
2018
影响因子：
1.6
通讯作者：
Yukun Fan
中科院分区：
文献类型：
--
作者：
Jing Li;Luyuan Zhang;Xiaolin Hou;Peng Cheng;Ning Chen;Xia Yu;Qi Liu;Yukun Fan
开发了一种旋转蒸发结合加速器质谱（AMS）测量的快速方法，用于测定大体积水样中的 129 I。对水浴温度、pH、浓缩体积、还原剂等参数进行了彻底优化。最佳条件下碘的化学产率在98.8%~100.7%之间。与直接蒸发相比，浓缩时间可缩短五倍。测得的环境水样的 129 I/ 127 I 比值与之前报道的值非常吻合，表明该方法准确、稳健且适合大量水样中 129 I 的测定。
A rapid method using rotary evaporation combined with accelerator mass spectrometry (AMS) measurement, was developed for the determination of129I in large-volume water samples. The parameters including water bath temperature, pH, concentration volume and reducing reagent, were thoroughly optimized. The chemical yield of iodine under the optimal conditions is between 98.8 and 100.7%. Compared to the direct evaporation, the enrichment time can be shortened by five times. The measured129I/127I ratios for the environmental water samples are in good agreement with those previously reported values, suggesting this method is accurate, robust and suitable for129I determination in large water samples.