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目的:本文建立了保健食品袋泡茶中总砷的测定方法并测定了20种保健食品袋泡茶中总砷含量。方法:以微波消解和湿消解法处理样品,原子荧光光度法进行测定。结果:本文测定总砷的线性范围为0μg/L～80μg/L,相关系数为0.9994,方法回收率为92.4%～109.6%,RSD为2.5%。测定的20种保健食品袋泡茶中总砷含量为0.10 mg/kg～0.80 mg/kg。结论:实验表明,本法简单、快速、准确,可以用于保健食品袋泡茶中总砷含量的测定。
Objective: This article established a method for the determination of total arsenic in health food teabag and determined the total arsenic in 20 kinds of health food teabag. Methods: The samples were treated by microwave digestion and wet digestion, and determined by atomic fluorescence spectrometry. Results: The linear range of determination of total arsenic was 0μg / L ~ 80μg / L, the correlation coefficient was 0.9994. The recoveries were 92.4% -109.6% with RSD of 2.5%. The total content of arsenic in 20 health food teabag samples was 0.10 mg / kg ~ 0.80 mg / kg. Conclusion: The experiment shows that this method is simple, rapid and accurate and can be used for the determination of total arsenic in teabag of health foods.