CAJ | 학술논문

用氢化物发生-原子荧光光谱法同时测定中药材五味子、红景天以及蕨麻中砷和汞.确定了仪器的最佳工作条件,考察了酸度、还原剂、预还原剂的影响以及共存元素的干扰情况.在选定的测定条件,砷的检出限为0.00029μg/mL,汞的检出限为0.073ng/mL,砷的回收率在91.58%-108.78%之间,Hg的回收率在95.00%-107.44%之间.此方法快速、简便、准确且灵敏度高,结果令人满意.
용경화물발생-원자형광광보법동시측정중약재오미자、홍경천이급궐마중신화홍.학정료의기적최가공작조건,고찰료산도、환원제、예환원제적영향이급공존원소적간우정황.재선정적측정조건,신적검출한위0.00029μg/mL,홍적검출한위0.073ng/mL,신적회수솔재91.58%-108.78%지간,Hg적회수솔재95.00%-107.44%지간.차방법쾌속、간편、준학차령민도고,결과령인만의.
The contents of arsenic and mercury in Chinese traditional medicine fructus schizandrae, silverweed cinquefoil root and gold theragran were determined by hydride generation-atomic fluorescence spectrometry simultaneously.The optimal conditions were established, and the influence factors such as acidity, concentration of reducer and prereducer, and the interference of coexiting elements were discussed.Under the optimal conditions, the detection limits for arsenic and mercury are 0.00029μg/mL and 0.073ng/mL respectively.The recovery is between 91.58% and 108.78% for As,and 95.00%-107.44% for Hg.This method is rapid,convenient,accurate,and sensitive.The results are satisfied.