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含能材料  2011 

HPLC-TOFMS测定NG/TEGDN中的丙三醇二硝酸酯

DOI: 10.3969/j.issn.1006-9941.2011.04.007

Keywords: 分析化学,液相色谱(HPLC),飞行时间质谱(TOFMS),电喷雾离子源(ESI),NG/TEGDN混合硝酸酯,丙三醇二硝酸酯

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Abstract:

应用高效液相色谱飞行时间质谱联用技术(HPLC-TOFMS)测定了丙三醇三硝酸酯(NG)/二缩三乙二醇二硝酸酯(TEGDN)混合硝酸酯中的杂质丙三醇二硝酸酯。色谱条件为Gemini5μC-18色谱柱、55/45(V/V)的甲醇/水流动相;质谱采集模式为电喷雾源负离子方式。结果表明:丙三醇二硝酸酯来源于NG,它存在1,3-丙三醇二硝酸酯和1,2-丙三醇二硝酸酯两种异构体;定量测定方法变异系数分别为0.021%和0.056%,方法精密度能够满足不同丙三醇二硝酸酯含量测定要求。

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