石墨炉原子吸收分光光度法检测双黄连注射液中铅元素的含量

Determination of Pb in Shuanghuanglian Injections by Graphite Furnace Atom Absorbance Spectrometry

目的:建立石墨炉原子吸收分光光度法测定双黄连注射液中铅元素的含量。方法:采用微波消解系统消解样品,以石墨炉原子吸收分光光度法测定双黄连注射液中铅元素的含量。结果:线性范围为0～80μg.L-1,一次方程相关系数r为0.9990。结论:采用本方法检测双黄连注射液中铅元素的含量,方法灵敏、准确、可靠,对控制注射液中铅元素的含量有实际意义。

Objective：To establish a graphite furnace atom absorbance spectrometry （AAS） method for determination of Pb content in Shuanghuanglian injections. Methods： Appling microwave digestion system to deteriorate sample. Use graphite furnace AAS method to determine Pb content. Results： The linear relationship between the absorbance and the concentration of Pb was in the range of 0-80μg·L^-1 （r=0.9989） with detection limit of μg·L^-. Conclusion： This method is found to be sensitive and accurate and was useful in control the content of Pb in Shuanghuanglian injections.