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目的对消乳散中铜(Cu)、铬(Cr)、镉(Cd)、钴(Co)、铅(Pd)、钠(Na)、钾(K)、钙(Ca)、镁(Mg)和锌(Zn)10种金属元素的含量进行测定,为消乳散的质量控制及临床应用提供依据。方法采用湿法消解法消解样品,采用石墨炉原子吸收光谱法测定消乳散中金属元素Cu、Cr、Cd、Co和Pd的含量,采用火焰原子吸收光谱法测定消乳散中Na、K、Ca、Mg和Zn金属元素的含量。结果3批消乳散中均检出Cu、Cr、Cd、Co、Pd、Na、K、Ca、Mg和Zn元素,所建立的标准曲线相关系数r>0.999 0,加样回收率在95.4%~101.7%内,精密度试验RSD在1.6%内,重复性试验RSD在2.0%内,稳定性试验RSD在1.8%内。结论该方法简便易于操作,适用于消乳散的金属元素限量控制。
Objective To study the effects of Cu, Cr, Cd, Co, Pb, Na, K, Ca, And zinc (Zn) of 10 kinds of metal elements were determined for the quality control and clinical application of demulsification provide the basis. Methods The samples were digested by wet digestion, the contents of Cu, Cr, Cd, Co and Pd were determined by graphite furnace atomic absorption spectrometry. The contents of Na, K, Ca, Mg and Zn metal element content. Results The contents of Cu, Cr, Cd, Co, Pd, Na, K, Ca, Mg and Zn were all detected in three batches of Xia Milk Powder. The correlation coefficient of the standard curve established was> 0.999 0 and the recovery rate was 95.4% ~ 101.7% RSD within 1.6% of precision test, RSD within 2.0% of repeatability test, and RSD of stability test within 1.8%. Conclusions The method is simple and easy to operate, suitable for the limited control of the metal elements of Xiaoshi San.