HPLC检测NG/BTTN混合硝酸酯生产洗涤废水的成分及含量  

Determination of Composition and Content of Eluent Wastwater from Mixed NG/BTTN Nitrate Production by HPLC

作　　者：李林君 陈世存 郭佳悦 宁伟 孟子晖[1] 郭培培 毕晶 薛敏[1] LI Lin-jun;CHEN Shi-cun;GUO Jia-yue;NING Wei;MENG Zi-hui;Guo Pei-pei;BI Jing;XUE Min(School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China;Xi'an Aerospace Chemical Power Co.,Ltd,Xi′an 710025,China;Xi′an Research Institute of Aerospace Power Measurement and Technology,Xi'an 710025,China)

机构地区：[1]北京理工大学化学与化工化学院,北京100081 [2]西安航天化学动力有限公司,陕西西安710025 [3]西安航天动力测控技术研究所,陕西西安710025

出　　处：《含能材料》2023年第12期1255-1261,共7页Chinese Journal of Energetic Materials

摘　　要：为了确定硝化甘油/1,2,4-丁三醇三硝酸酯(NG/BTTN)混合硝酸酯生产洗涤废水成分和含量,开展了高效液相色谱(HPLC)梯度洗脱法检测洗涤废水的工作,确定色谱条件如下:固定相为C18(250 mm×4.6 mm,5µm)色谱柱,流动相为乙腈/水溶液,检测波长为200 nm。结果表明,在洗涤废水中检出6种有机物,通过化合物的保留时间及其与分配系数LogD的线性关系拟合(7天内取样27次),确定了NG/BTTN混合硝酸酯生产洗涤废水中除了NG和BTTN,尚存在1,2-丙三醇二硝酸酯(30.58%~41.20%)、1,3-丙三醇二硝酸酯(110.69%~135.14%)、1,2,4-丁三醇-1,2-二硝酸酯(7.90%~10.63%)和1,2,4-丁三醇-1,4-二硝酸酯(22.55%~27.95%)四种未完全硝化产物,标准偏差均低于10%,并于10 d内取样40次,证明了该方法准确可靠、适用性好,满足工业生产的检测需求。In order to determine the composition and content of eluent wastewater from the production of nitroglycerin/1,2,4-bu-tanetriol trinitrate(NG/BTTN)mixed nitrate,a high performance liquid chromatographic(HPLC)gradient elution method was carried out to detect washing wastewater.The chromatographic conditions were determined as follows:the stationary phase was C18(250 mm×4.6 mm,5µm)column,the mobile phase was acetonitrile/water solution,and and the detection wavelength was 200 nm.The results showed that six organic compounds were detected in the scrubber wastewater.By fitting the retention time of the compounds and their linear relationship with the partition coefficient LogD(27 samples were taken within 7 days),it was determined that in addition to NG and BTTN,the following compounds were present in the scrubber wastewater from the production of mixed NG/BTTN nitrates:1,2-dinitroglycerol(30.58%-41.20%),1,3-dinitroglycerol(110.69%-135.14%),1,2,4-butanetriol-1,2-dinitrate(7.90%-10.63%),and 1,2,4-butanetriol-1,4-dinitrate(22.55%-27.95%),with the standard devia-tions lower than 10%,and the method was sampled for 40 times within 10 d.It was proved that the method is accurate,reliable and applicable,and meets the testing needs of industrial production.

关 键 词：硝化甘油/1 2 4-丁三醇三硝酸酯(NG/BTTN) 洗涤废水 高效液相色谱(HPLC) 成分 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]