CAJ | 학술논문

目的:用火焰原子吸收分光光度计和原子双道荧光光度计分别对不同产地冻干地黄中的Pb、Cd、Cu、As和Hg 5种重金属和有害元素进行检测. 方法:采用硝酸-高氯酸对样品进行消化后,采用原子吸收分光光度法测定Pb、Cd和Cu含量,采用原子荧光光度法测定As和Hg的含量. 结果: 各元素线性关系良好,相关系数均大于0. 997 4,平均回收率为97. 88% ~100. 90%,RSD为0. 019% ~4. 20%(n=6),同时发现10批样品中的4批样品部分重金属和有害元素超过《中国药典》限量标准.结论:该方法准确度高,操作简便,快捷,适用于冻干地黄中重金属和有害元素的测定.
목적:용화염원자흡수분광광도계화원자쌍도형광광도계분별대불동산지동간지황중적Pb、Cd、Cu、As화Hg 5충중금속화유해원소진행검측. 방법:채용초산-고록산대양품진행소화후,채용원자흡수분광광도법측정Pb、Cd화Cu함량,채용원자형광광도법측정As화Hg적함량. 결과: 각원소선성관계량호,상관계수균대우0. 997 4,평균회수솔위97. 88% ~100. 90%,RSD위0. 019% ~4. 20%(n=6),동시발현10비양품중적4비양품부분중금속화유해원소초과《중국약전》한량표준.결론:해방법준학도고,조작간편,쾌첩,괄용우동간지황중중금속화유해원소적측정.
Objective:To analyze the content of Pb, Cd, Cu, As and Hg in freeze-dried Rehmannia from different habitats by FAAS and double channels AFS. Methods:The contents of Pb,Cd and Cu in Rehmannia from different habitats were directly deter-mined by FAAS, while the contents of As and Hg were determined by double channels AFS after pretreated with HNO3-HClO4 . Re-sults:It was shown that each element had good linear relationship with the correlation coefficient above 0. 997 4. The average recovery was 97. 88%-100. 90% with RSD of 0. 019% -4. 20% (n=6). Meanwhile, the concentrations of 5 harmful elements and heavy met-als in 4 batches of 10 samples were higher than the limits described in Chinese pharmacopoeia. Conclusion:The results measured by the method are considered to be accurate, quick and easy to be operated. It can be used to determine heavy metals and harmful ele-ments in freeze-dried Rehmannia from different habitats.