摘要
目的：探讨通过湿法消解海产品,利用原子荧光光谱法测定总砷的检测方法。方法：利用混酸（硝酸＋硫酸＋高氯酸）消化样品,以盐酸作载流,采用氢化物-原子荧光法进行测定。结果：测定的总砷含量在1-50μg/L浓度范围内呈良好线性关系,相关系数r均大于0.999,测定相对标准偏差均小于5%,回收率在91%-107%之间。结论：该方法操作简便,灵敏,结果可靠。
Objective：To establish a new atomic fluorescence spectrometry determination method for total arsenic in seafood by wet digestion.Methods：Samples were digested by mixed acid（nitric acid＋sulfuric acid＋perchloric acid） and measured in hydride generation-atomic fluorescence spectrometry while hydrochloric acid was the carrier.Results：The total arsenic content showed good linearity within the concentration range of the 1-50 μg/L.Correlation coefficient was greater than 0.999,relative standard deviations（RSD） less than 5%,recoveries 91%-107%.Conclusion：The method is simple,sensitive and reliable.
出处
《中国卫生检验杂志》
CAS
2010年第2期287-288,304,共3页
Chinese Journal of Health Laboratory Technology
关键词
总砷
海产品
湿法消解
氢化物-原子荧光光谱法
Total arsenic
Seafood
Wet digestion
Hydride generation-atomic fluorescence spectrometry
