紫外分光光度法测定反应过程中HNIW的含量

Quantitative and Qualitative Analysis of Hexanitrohexaazaisowurtzitane in Reaction Process by UV-spectrophotometry

利用紫外分光光度法建立一种定性鉴定和定量测定六硝基六氮杂异伍兹烷（HNIW）的方法，HNIW的乙酸乙酯溶液在λmax=272．3nm处具有最大吸光度，标准样品在0—150mg·L^-1范围内，吸光度与浓度呈良好的线性关系，相关系数r为0．9992。利用紫外分光光度法，对反应过程中生成的HNIW进行光谱扫描和吸光度测定，根据最大吸收峰位置可判断产品是否为HNIW，根据标准曲线可计算HNIW的浓度。

A method for qualification and quantification of hexanitrohexaasaisowurtzitane （HNIW） by ultraviolet spectrophotometry was established. The solution of HNIW in ethyl acetate has the maximum absorbance at 272.3 nm by ultraviolet-visible spectrophotometer. The concentration of standard HNIW was correlated very well to its optical density at 272.3 nm in the range of 0 - 150 mg·L^-1 with a relativity coefficient of 0. 9992. During the production of HNIW, sample was taken out of the reaction vessel and measured by spectrophotometer to determine the product by λmax and the concentration of the HNIW was calculated according to the absorbance.