原子荧光法测定生物体中As消解条件改进探讨  

Discussion of improved conditions to dispel arsenic in organism by generation-atomic fluorescence spectrometry

作　　者：金敬林[1] 蔡丽萍[1] 胡益峰[1] 应岳[1] 

机构地区：[1]国家海洋局舟山海洋工作站,浙江舟山316100

出　　处：《海洋环境科学》2012年第6期910-912,共3页Marine Environmental Science

摘　　要：以HNO3-H2SO4-HCIO4混合酸进行消解样品,氢化物发生原子荧光光谱法测定生物体中As。本法克服了以HNO3-HCIO4混合酸放置过夜、消解不完全和消解慢等弊端,同时研究了消解方法、酸度、还原剂浓度以及干扰离子等对测定的影响。通过对标准样品消解测定,测定结果满意,相对标准偏差为2.3%,完全满足生物体中As的分析要求,具有分析速度快、操作简便、检验效率高等优点。To dispel arsenic in the organism using the mixture of HNO3-H2SO4-HCIO4 acid and the determination of it was done by hydride generation-atomic fluorescence spectrometry. This method overcomes lots of malpractice, such as leaving the mixture of HNO3 - HCIO4 acid to stand overnight, dispelling incomplete and slowly. Beside, the method of dispel, concentration of reducing agent and in-terfering ions which effect the result was studied. The result is satisfactory. The relative standard deviation is 2.3%. The advantage of this method is analytical rapid speed, convenient and simple operation.

关 键 词：原子荧光光谱法 生物体 AS 改进 

分 类 号：Q331[生物学—遗传学]