| 沉淀物和生物中U,Th和226Ra的联合测定 |
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| 引用本文： | 陈进兴,张平青.沉淀物和生物中U,Th和226Ra的联合测定[J].环境科学学报,1989,9(2):243-248. |
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| 作者姓名： | 陈进兴 张平青 |
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| 作者单位： | 国家海洋局第三海洋研究所 厦门
(陈进兴)，国家海洋局第三海洋研究所 厦门(张平青) |
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| 摘 要： | 用放射化学法对U,Th,~(226)Ra等核素进行联合测定,国外已有不少报道,只是所用的分离方法和所测的介质不同而已。我国学者也做过一些这方面的工作。本工作建立了用三正辛胺-二甲苯萃取分离法对沉积物和生物样中U,Th和~(226)Ra的联合测定方法。 二、主要仪器与试剂
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| 关 键 词： | 沉淀物 生物 u Th ^226Ra |
| 收稿时间： | 1988/5/23 0:00:00 |
SIMULTANEOUS DETERMINATION OF U, Th AND 226Ra IN SEDIMENTS AND BIOMASS |
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| Chen Jinxing and Zhang Pingqing.SIMULTANEOUS DETERMINATION OF U, Th AND 226Ra IN SEDIMENTS AND BIOMASS[J].Acta Scientiae Circumstantiae,1989,9(2):243-248. |
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| Authors: | Chen Jinxing and Zhang Pingqing |
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| Institution: | Third Institute of Oceanography, SOA, Xiamen and Third Institute of Oceanography, SOA, Xiamen |
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| Abstract: | A radiochemical method for simultaneous determination of U, Th and (228)Ra in sediments and biomass was investigated. The sensitivities of the method were 10(-6)g for U and Th and 17.7Bq/kg for (226)Ra respectively. Radiochemical recovery of (226)Ra was 81.7%, while chemical recovery of Ba was 90.7%. The decontamination of the method was satisfactory. |
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| Keywords: | radiochemical method sediment biomass U Th (226)Ra |
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