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建立了皮革及其制品中砷和锑的微波消解-原子荧光光谱测定方法,方法准确、灵敏,快速。在优化的试验条件下,砷浓度在0.5～150 ng/mL范围内成线性关系,相关系数r=0.9995,检出限为0.22 ng/mL,回收率为99.4%～104.2%;锑浓度在0.5～120 ng/mL范围内成线性关系,相关系数r=0.9998,检出限为0.16 ng/mL,回收率为101.1%～106.7%。相对标准偏差(n=5)均小于5%。方法应用于皮革及其制品中砷和锑的测定,结果满意。
A method for the determination of arsenic and antimony in leather and its products by microwave digestion-atomic fluorescence spectrometry has been established. The method is accurate, sensitive and rapid. Under the optimal conditions, the concentration of arsenic in the range of 0.5-150 ng / mL was linear, the correlation coefficient was 0.9995, the detection limit was 0.22 ng / mL and the recovery was 99.4% -104.2%. The concentration of antimony was 0.5 ~ 120 ng / mL. The correlation coefficient was 0.9998. The detection limit was 0.16 ng / mL. The recoveries ranged from 101.1% to 106.7%. The relative standard deviations (n = 5) were all less than 5%. The method was applied to the determination of arsenic and antimony in leather and its products with satisfactory results.