【摘要】 采用涂邻苯二甲酸二乙酯的气相色谱柱对用化学气相沉积法制备ＳｉＣ纤维的主要原料——氯硅烷直接进样分析，在较短的时间内即可得知每批原料的差异。实验表明，方法操作简便、快速，重复性和精密度较好，重复６次的变异系数均＜１％。可用于ＳｉＣ纤维原料的质量监测。更多还原

【Abstract】 Chlorosilanes are the essential raw material of SiC fibre made by “CVD(chemical vapour deposition)” method. The purity of chlorosilane affects the quality of SiC fibre obtained. Therefore, a simple and reliable method for the determination of the constituent of chlorosilane is needed. A gas chromatographic method for quantitative analysis of chlorosilane is described in this paper. The gas chromatographic conditions were as follows: column, 10% diethyl phthalate on 6201 support(60 80 mesh), 3m×5mm i.d. stainless steel column; column temp., 60℃; injection temp., 110℃; thermal conductivity detector temp., 140℃ carrier gas H 2 with flow rate of 60 mL/min. The results show that the method is simple and rapid, and has good precision and reproducibility . The coefficient of variation of the method was less than 1%(n=6).更多还原