微波消解ICP-AES法测定牛黄解毒片中的微量元素

Determination of Trace Elements in Niuhuang Jiedu Tablets by Microwave Digestion and ICP-AES

采用HNO3-H2O2消解体系对牛黄解毒片样品进行微波消解制样,利用ICP-AES法同时测定了牛黄解毒片中As,Ca,Mg,Al,Mn,Sr,Ba,Se,Ni,Cd,Cu,Zn,Mo和Pb等14种微量元素的含量,对样品的前处理条件进行了探讨,通过添加标准回收实验,验证了分析数据的可靠性。结果表明,该方法快速、简便、数据准确可靠,结果令人满意,适合常规分析。

Niuhuang Jiedu tablets were digested with HNO3-H2O2 system by microwave digestion. The fourteen trace elements of As, Ca, Mg, Al, Mn, Sr, Ba, Se, Ni, Cd, Cu, Zn, Mo and Pb in the solution were determined by ICP-AES. The ICP-AES result proved to be reliable by adding standard recovery experiment to the process. By comparison with the result of chemical experiment, thr present method was accurate, quickly-accessible, and convenient. It was used for Niuhuang Jiedu tablets with result satisfactory.