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红外定量分析四氯化钛中的三氯乙酰氯

2008-06-19 分享

摘  要:精四氯化钛中的三氯乙酰氯会影响海绵钛的质量。为测定三氯乙酰氯的含量,应用傅里叶变换红外光谱技术、自制5 cm长光程液体池和一套密封取样装置,定量分析了精四氯化钛中的三氯乙酰氯。本方法的线性范围在(0~0.163)g/L,相关系数r=0.999 4,吸光系数是2.767 L/g·cm,检出限3.61×10-4 g/L。本方法检出限低、灵敏度高、线性范围宽,可满足四氯化钛工业生产监控这种杂质的要求。   关键词:傅里叶变换红外光谱;四氯化钛;三氯乙酰氯;定量分析;密封取样装置   中图分类号:TQ114;TH744.41        文献标识码:A          文章编号:1672-4984(2008)03-0095-03   Quantitative analysis for trichloroacetyl chloride in titanium tetrachloride by infrared spectrophotometers   SONG Yu-ping1,2, TAN Hong2, SUN Jun-ping1, YANG Hong-bo2, CHEN Hong-liang1,2, XU Hua-jie1,2, HE Jin-lin2   (1.Guizhou University,Guiyang 550001,China; 2.Guizhou Research Center of Physical Testing and Chemical Analysis,Guiyang 550001,China)   Abstract: Trichloroacetyl chloride in titanium tetrachloride affects the quality of titanium sponge, FT-IR(Fourier transform infrared) spectrophotometer with a homemade 5 cm path length liquid cell and a set of airproof sampling units has been used to determine trichloroacetyl chioride in titanium tetrachloride. The results show that the liner range of calibration curve is from 0 g/L to 0.163 g/L, r, the correlation coefficient is 0.999 4, the absorbance coefficient is 2.767 L/g·cm and the detection limit is 3.61×10-4 g/L. All above indicate this method can determine low concentration trichloroacetyl chloride, with high sensitivity and wide liner range. Thus, it will satisfy industrial production requirement well.   Key words: FT-IR spectrophotometers; Titanium tetrachloride; Trichloroacetyl chloride; Quantitative analysis; Airproof sampling unit   Editor:liyan


 
 
 
 
 
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