裂解气相色谱法测定含能材料中氟橡胶
Determination of Fluoro-Rubber in Energetic Materials by Pyrolytic Gas Chromatography
摘 要
应用裂解气相色谱法测定了含能材料中氟橡胶的含量,方法中选用液体进样法,将试样(如聚黑-14及黑索今等样品,以及氟橡胶标准样品)溶解于乙酸乙酯中,分取其中1 μL滴于热带探头的铂金带上,经红外灯烘干除去乙酸乙酯后引入于裂解器中,在600 ℃裂解8 s,最适宜的进样量为108 μg.在最佳测定条件下,测得的峰高值与氟橡胶的质量浓度在19.2~28.8 g·L-1范围内呈线性关系.对方法的精密度进行了试验,测得相对标准偏差(n=11)为0.13%.
氟橡胶
测定
含能材料
Pyrolytic gas chromatography
Fluororubber
Determination
Energetic materials
Abstract
Pyrolytic gas chromatography was applied to the determination of fluororubber in energetic materials. Sample introduction in liquid state was preferred in this method. The samples (i.e. the JH-14 the RDX and the fluororubber standard) were dissolved in ethylacetate and an aliquot of 1 μL was dropped on the platinum belt of the probe and after drying by a IR-lamp to expel the ethyl acetate,the sample on the platinum belt was introduced into the pyrolyzer,and pyrolyzed at 600 ℃ for 8 s. The optimum quantity of sample introduced was 108 μg. Under optimum condition of determination. Linear relationship between values of peak heights and concentration of fluororubber was obtained in the range of 19.2-28.8 g·L-1. Value of RSD′s (n=11) obtained in the precision test was 0.13%.
中图分类号 O657.7
所属栏目 工作简报
基金项目 国防工业火炸药专业中青年基金
收稿日期 2007/7/4
修改稿日期
网络出版日期
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备注王晓红(1976-),女,陕西人,硕士,主要从事火炸药分析方面的研究.
引用该论文: WANG Xiao-hong,ZHOU Ji-hua,CHENG Xu,JIN Shui-ming,FAN Yong-hui. Determination of Fluoro-Rubber in Energetic Materials by Pyrolytic Gas Chromatography[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2008, 44(9): 857～859
王晓红,周继华,程序,金水铭,樊永惠. 裂解气相色谱法测定含能材料中氟橡胶[J]. 理化检验－化学分册, 2008, 44(9): 857～859
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参考文献
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