多聚磷酸钠作荧光增强剂测定海水中微量铀

辐射防护通讯 ›› 2016, Vol. 36 ›› Issue (2): 39-42.

多聚磷酸钠作荧光增强剂测定海水中微量铀

覃连敬, 李美丽

广东省环境辐射监测中心, 广州, 510300

收稿日期:2015-11-25 出版日期:2016-04-20 发布日期:2021-11-19
作者简介:覃连敬(1983- ),男,2008年毕业于中山大学,无机化学专业,硕士; 工程师。现主要从事辐射环境监测工作。

Determination of Trace Uranium in Sea Water with Sodium Polyphosphate as Fluorescence Intensifier

Qin Lianjing, Li Meili

Guangdong Provincial Environmental Radiation Monitoring Center, Guangzhou, 510305

Received:2015-11-25 Online:2016-04-20 Published:2021-11-19

摘要/Abstract

摘要： 报道了一种用多聚磷酸钠作铀荧光增强剂来测定海水中微量铀的实验方法。结果发现,在海水稀释10倍后,溶液pH值调至2～3,多聚磷酸钠浓度为0.58%的条件下可定量测定海水中微量铀,测量变异系数为4.3%～6.2%,全程加标回收率为95.0%～98.2%,检出限范围为0.16～0.22 μg/L。

关键词: 多聚磷酸钠, 荧光增强剂, 海水, 微量铀

Abstract: A novel method for determination of uranium in sea water with sodium polyphosphate as fluorescence intensifier was reported. It was found experimentally that quantitative determination of trace uranium was achievable with a 10-fold dilution by deionized water,the solution pHset to 2-3 and a concentration of sodium polyphosphate of 0.58%. The relative deviation of duplicate analysis is 4.3%-6.2%,and the recovery of standard addition is 95.0%-98.2%. Its detection limit is 0.16-0.22 μg/L.

Key words: Sodium polyphosphate, Fluorescence intensifier, Sea water, Trace uranium

中图分类号:

TL271

覃连敬, 李美丽. 多聚磷酸钠作荧光增强剂测定海水中微量铀[J]. 辐射防护通讯, 2016, 36(2): 39-42.

Qin Lianjing, Li Meili. Determination of Trace Uranium in Sea Water with Sodium Polyphosphate as Fluorescence Intensifier[J]. RADIATION PROTECTION BULLETIN, 2016, 36(2): 39-42.