| Liu Guangshan,Huang Yipu,Chen Xinbao. 2000. Measurement of 224Ra, 226Ra and 228Ra in seawater using Mn-fiber adsorption-γ spectrum method. Acta Oceanologica Sinica, (2):19－27 |
| Measurement of 224Ra, 226Ra and 228Ra in seawater using Mn-fiber adsorption-γ spectrum method |
| Measurement of 224Ra, 226Ra and 228Ra in seawater using Mn-fiber adsorption-γ spectrum method |
| Received:September 05, 1998 Revised:January 08, 1999 |
| DOI： |
| Key words:Radium isotopes seawater γ-spectrum analysis |
| 中文关键词: Radium isotopes seawater γ-spectrum analysis |
| 基金项目:This project was supported by the National Natural Science Foundation of China under contract No. 49676296. |
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| Abstract: |
| The specific activities of 224Ra,226Ra and 228Ra were determined by measuring γ-rays of their daughters with HPGe γ spectrometer after preconcentrating Ra isotope' with Mn-fiber adsorption from large volume seawater.The calculating formulas of specific activities of the three nuclides derived.The methods of sample preparation and spectnun analysis were discussed.The advantages of the method are simple,rapid and three nuclides can be determined simultaneously. |
| 中文摘要: |
| The specific activities of 224Ra,226Ra and 228Ra were determined by measuring γ-rays of their daughters with HPGe γ spectrometer after preconcentrating Ra isotope' with Mn-fiber adsorption from large volume seawater.The calculating formulas of specific activities of the three nuclides derived.The methods of sample preparation and spectnun analysis were discussed.The advantages of the method are simple,rapid and three nuclides can be determined simultaneously. |
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