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Investigation on mercury baseline level in urine in healthy population
Author(s): YANG Shuilian, NI Weimin, LI Xiaojun, QIU Chuangyi, SUN Daoyuan, ZHAO Liqiang, DAN Zuolin, HUANG Zhenzuo, XIE Lanlan, YOU Quancheng, FENG Keyu
Pages: 418-
419
Year: 2006
Issue:
7
Journal: CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES
Keyword: 尿; 汞; 测定法; 标准值;
Abstract: 目的探讨不同地区非接触汞正常人群尿汞正常值.方法在上海、黑龙江、广东、四川等省市,收集非接触汞正常人群尿样共2 248例.样本采集采用随意尿,统一使用聚乙烯塑料瓶收集不少于25 ml的尿样,统一使用上海光华仪器厂生产的F732-G型测汞仪,测定方法采用尿中汞的酸性氯化亚锡还原-冷原子吸收法和尿中汞的碱性氯化亚锡还原-冷原子吸收法.并用肌酐和比重校正.采用苦味酸法测定肌酐,采用比重计测定比重.结果尿汞测定值呈偏态分布,采用对数转换成正态或近似正态分布,用几何均数表示平均水平.酸性法和碱性法2种测定方法的比较,差异无统计学意义(P=0.099).男女间各地区比较,差异无统计学意义(P>0.05).尿汞正常值95%上限为≤4.25μg/L(21.22 nmol/L),用肌酐校正后为3.724 5 μg/g Cr(18.38 mol/g Cr),比重校正后为4.45μg/L(22.50 nmol/L).结论建议尿汞正常参考值为≤5μg/L(25 mol/L),肌酐校正后为≤4 μg/L Cr(20nmol/Cr),比重校正后为≤5 μg/L(25 nmol/L).
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