HNIW纯度测定方法研究

对测定HNTW纯度的高效液相色谱进行了研究。采用紫外分光光度检测器，YWG－C18硅键合相高效反相色谱柱，乙腈－不流动相，比较了校正曲线法、内标法和峰面积归一法等三种定量方法。结果表明，三种方法标准偏差均小于1％，但归一准确度受条件限制；内标法虽准确度较高而操作较为繁琐；而校正曲线法不仅准确度较高且操作方便。建议采用校正曲线法测定HNIW纯度。

Study on Determination Method of HNIW Purity

The high performance liquid chromatography (HPLC) to determine purity of hexanitrohexaazaisowurtzitane (HNIW) has been studied in this paper. The method is carried out with ultraviolet spectrophotometer as detector,YWG-C18 column,acetonitrile(CH 3CN) water mobile phase. The compared results of calibration curve method,internal standard method,normalization method show that the standard deviation of three methods is all below 1%,the accuracy of normalization method is restricted with condition, the internal standard method is difficult to be accomplished,though its accuracy is higher, the calibration curve method is easy to be operated and with higher accuracy. It is prefer to use calibration curve method to analyze purity of HNIW.