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目的检测与分析阿胶类保健食品中铬、铅、汞、砷的含量,评价4种有害元素的含量情况,为保健食品的质量安全评价提供参考。方法采用微波消解系统消化样品,用原子吸收光谱仪测定铬与铅的含量,原子荧光光谱仪测定汞与砷的含量。结果铬、铅、汞、砷的检出限分别为0.035μg/L、0.025μg/L、0.003 5μg/L、0.005 7μg/L,回收率分别为97.5%、97.3%、96.5%、97.1%,相对标准偏差均<1.0%,精密度较好。阿胶类保健食品中铬的含量为0.00 mg/kg~0.65 mg/kg,铅的含量为0.00 mg/kg~0.49 mg/kg,汞的含量为0.00 mg/kg~0.25 mg/kg,砷的含量为0.00 mg/kg~0.30 mg/kg。结论 4种有害元素含量测定结果显示,100批阿胶类保健食品质量总体良好,但阿胶口服液类及阿胶膏类保健食品中砷与铅的含量较高,应引起重视。
Objective To detect and analyze the contents of chromium, lead, mercury and arsenic in health food products of ejiao and to evaluate the contents of four kinds of harmful elements, and provide a reference for the quality and safety evaluation of health food products. Methods Samples were digested with microwave digestion system, the contents of chromium and lead were determined by atomic absorption spectrometry, and the contents of mercury and arsenic were determined by atomic fluorescence spectrometry. The detection limits of chromium, lead, mercury and arsenic were 0.035 μg / L, 0.025 μg / L, 0.003 5 μg / L and 0.005 7 μg / L, respectively. The recoveries were 97.5%, 97.3%, 96.5% and 97.1% The relative standard deviations were <1.0%, the precision was better. The content of chromium in donkey-hide health food ranges from 0.00 mg / kg to 0.65 mg / kg, the content of lead is 0.00 mg / kg to 0.49 mg / kg, the content of mercury is 0.00 mg / kg to 0.25 mg / kg, Is 0.00 mg / kg ~ 0.30 mg / kg. Conclusions The results of determination of 4 kinds of harmful elements showed that the quality of 100 batches of ejaculation health food was generally good, but the content of arsenic and lead in ejaculation ointment and health care food of donkey-hide gelatin was higher, which deserved great attention.