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【摘要】 目的 为监测核设施氚的排放对周围生物样品和居民健康的影响，设计了一套用于生物样品中氚测量的前处理装置 方法 使用12种不同活度的标准氚水拟合了探测效率的标准曲线；并利用高、中、低3种不同活度标准氚水和3H-TDR分别测定了自由水氚和有机氚的化学回收率；我院和江苏省辐射环境监测管理站对三种生物样品测量结果进行了比对 结果 拟合的标准曲线可以用于环境低水平放射性测量（E=0.2328）。该装置在处理加标样的40.0 g的大米样品时，对标准氚水和3H-TDR平均化学回收率为95.4%，重复性较好；对比结果接近（t=0.479,P＞0.05） 结论 该前处理装置可以用于环境生物样品中有机氚的测量。 备注：根据翻译的好坏给金币，如果有朋友的确翻译的很好，我可以继续给他追加30金币（即总金币数为150个），由于比较着急，请大家帮帮忙吧，谢谢。祝各位虫友天天开心。 |
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★ ★
Mally89(金币+2): 代lz发放！~感谢您的热情应助！~欢迎常来！~好运！~ 2011-04-08 11:32:05
Mally89(金币+2): 代lz发放！~感谢您的热情应助！~欢迎常来！~好运！~ 2011-04-08 11:32:05
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为监测核设施氚的排放对周围生物样品和居民健康的影响，设计了一套用于生物样品中氚测量的前处理装置 For monitoring tritium emissions from nuclear facilities and its effects on health of nearby biological samples and residents, a pre-treatment device for measuring tritium contents in biological samples is designed. |
2楼2011-03-25 20:19:27
3楼2011-03-27 11:54:53
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
Mally89(金币+30, 翻译EPI+1): 2011-04-08 11:30:36
Mally89(金币+30): 2011-04-08 11:30:43
Mally89(金币+30): 2011-04-08 11:30:59
Mally89(金币+10): 代lz发放！~感谢您的热情应助！~欢迎常来！~好运！~ 2011-04-08 11:31:34
Mally89(金币+30, 翻译EPI+1): 2011-04-08 11:30:36
Mally89(金币+30): 2011-04-08 11:30:43
Mally89(金币+30): 2011-04-08 11:30:59
Mally89(金币+10): 代lz发放！~感谢您的热情应助！~欢迎常来！~好运！~ 2011-04-08 11:31:34
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Abstract The purpose：A pre-treatment device for measuring tritium contents in biological samples is designed in order to monitor the effect of tritium emissions from nuclear facilities on health of nearby biological samples and residents. The methods: There are twelve types of tritium with different activity standard used to fit the standard curve of detection efficiency. And the chemical recovery of tritium in free water and organic are detected by three tritium and 3H-TDR with different activity standards. The results of three biological samples from our lab are compared with the results from the environmental radiation monitor management station of Jiangsu province. The results: The standard curve fitted in our lab can be used in low-level environmental radiation measurement (E = 0.2328). An average chemical recovery of 95.4% and a good repeat is obtained from treating sample with plus standard sample of 40.0 g of rice by our device, the standard tritium water and 3H-TDR average chemical recovery was 95.4%, and the results are comparatively close to t = 0.479, P> 0.05. The Conclusion: the Pre-treatment device can be used to measure the organic tritium in environmental biological samples. |
4楼2011-03-27 16:41:48
5楼2011-03-27 16:44:41
