| 于水,邹晓颖,仲伟强,王功鹏,郭力生.铀氧化物在人体模拟肺液中的溶解特性[J].中华放射医学与防护杂志,2001,21(2):90-92 |
| 铀氧化物在人体模拟肺液中的溶解特性 |
| The solubility characteristics of uranium oxide in simulated lung fluid |
| 投稿时间：2000-06-11 |
| DOI： |
| 中文关键词: 铀氧化物 模拟肺液 溶解度 |
| 英文关键词:Uranium oxides Simulated lung fluid Solubility |
| 基金项目: |
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| 摘要点击次数: 2659 |
| 全文下载次数: 2097 |
| 中文摘要: |
| 目的 研究现场采集的不同粒径铀氧化物在人体模拟肺液和相关的缓冲体系中的溶解特性。方法 用Cascade采样器将氧化铀按粒径分级,观察不同粒径铀氧化物在模拟肺液和缓冲液中不同时间的累积溶解百分数。结果 小粒径铀氧化物在模拟肺液中的溶解度相对较高,且溶解速率随时间增加而增大。铀氧化物在HAc-NaAc体系中的溶解速率随酸度增加而加快,在碱性NH4OH-NH4Cl体系中溶解速率随碱性增加而加快。铀氧化物在Na2CO3溶液中易溶,在NaH2PO4-Na2HPO4体系中几乎不溶。结论 小粒径铀氧化物在模拟肺液中溶解度较高。铀氧化物易溶于酸性HAcNaAc体系、碱性NH4OH-NH4Cl体系和Na2CO3溶液,不溶于NaH2PO4-Na2HPO4体系。 |
| 英文摘要: |
| Objective To investigate the solubility characteristics of uranium oxide with different particle sizes,which was collected at site scene,in simulated lung fluid and other correlative buffer systems.Methods Uranium oxide particles were classified with a cascade impector.The percentage of cumulative soluble uranium with different particle sizes in simulated lung fluid and buffer solutions at different times were observed.Results Uranium oxides with smaller particle sizes had better solubility in simulated lung fluid and the solubility became higher with increase of time.The solubility of uranium oxide also became faster along with the increase of acidity of HAcNaAc buffer and increase of alkalinity of NH4OH-NH4Cl buffer systems.Uranium oxide was soluble in Na2CO3 solution and basically insoluble in NaH2PO4-Na2HPO4 solution.Conclusions Uranium oxides with smaller particle sizes have better solubility than bigger ones in simulated lung fluid.Uranium oxide is soluble in acidic HAcNaAc,alkaline NH4OH-NH4Cl buffer systems and Na2CO3 solution,but insoluble in NaH2PO4-Na2HPO4 solution. |
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