HMX/TATB混合炸药中HMX与TATB组分含量的液相色谱分析  

Liquid Chromatographic for Component Content in HMX/TATB Explosive Formulations

作　　者：陈玲[1,2] 赵颖彬 逄小青[1,2] 张勇 CHEN Ling;ZHAO Yin-bin;PANG Xiao-qing;ZHANG Yong(Institute of Chemical Materials,CAEP,Mianyang 621999,China;Energetic Materials Measurement and Evaluation Center of CAEP,Mianyang 621999,China)

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621999 [2]中物院含能材料测试评价中心,四川绵阳621999

出　　处：《含能材料》2020年第12期1156-1162,I0003,共8页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金资助(11502250)。

摘　　要：为准确、快速测定奥克托今(HMX)/三氨基三硝基苯(TATB)混合炸药中HMX和TATB的含量,建立了液相色谱分析方法。采用二甲基亚砜(DMSO)为溶剂,超声波辅助溶解样品,考察了样品量、样品提取时间、流动相、色谱柱、检测波长等条件对测试结果的影响。结果表明:在C18色谱柱上,以乙腈/水=45/55(V/V)为流动相,HMX/TATB混合炸药中HMX和TATB分离良好,分析时间仅6.5 min;16.0 mg HMX/TATB混合炸药溶解在250 mL DMSO中,超声辅助溶解1.0 h,室温静置溶解4.0 h可以使HMX和TATB溶解萃取完全,重复性测试结果的相对标准偏差分别为0.99%,0.55%;HMX在0.011~0.016 mg·mL-1,TATB在0.032~0.056 mg·mL-1的范围内与峰面积呈较好的线性关系,相关系数R2分别为0.9999、1.0000。A rapid and accurate high performance liquid chromatographic method was developed for the simultaneous determination of TATB and HMX in explosive formulations.Dimethyl sulfoxide(DMSO)was used as the solvent and ultrasonic assisted to dissolve the sample.The influences of sample weight,dissolve time,mobile phase type,chromatographic column type and detection wavelength on results were investigated.The results show that HMX and TATB were confirmed to separate within 6.5 min by using C18 chromatographic column with mobile phase of acetonitrile and water at 45/55(V/V).And the HMX and TATB could be extracted completely at the condition of ultrasonic for 1.0 h and standing at room temperature for more than 4.0 h after they were dissolved in 250 mL DMSO.The relative standard deviation of reproducibility(n=8)was 0.55%and 0.99%,respectively.Linear relationships between values of peak area and mass concentration of TATB and HMX were good in the ranges of 0.032-0.056 mg·mL-1(R2=1.0000)and 0.011-0.016 mg·mL-1(R2=0.9999).

关 键 词：HMX/TATB混合炸药 液相色谱 组分含量 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O65[理学—分析化学]