Abstract： A new method for measuring trichloroacetone was established using 0.1% sodium hydroxide as solvent, with nitrogen as a gas rate of 1 ml/min, ov-1 (equivalent to HPI column) capillary column: 30m * 0.50 m m * 3.0 μ m, FID detector, column temperature 150 ℃, sample inlet temperature 200 ℃, detector temperature 250 ℃. The results show that the trichloroacetone concentration has a good linear relationship between 0.148 8 u g/ml- -111.6000ug/ml, with the linear equation:y=8058.5x+5 790.6, the correlation coefficient R2=0.999 8, and the relative standard deviation of the RSD is less than 5%. The detection method is simple to operate, fast, with high precision and good reproducibility. It is suitable for the determination of residual solvent in folic acid, and provides a guarantee for improving the quality of folic acid products.
王莉莉，王晓凤，李焕君，张晓灿，马凤霞，康 倩，王 丽，刘晓莲，马宁宁. 叶酸中残留溶剂三氯丙酮气相色谱检测方法[J]. 煤炭与化工, 2023, 46(6): 139-142.
Wang Lili, Wang Xiaofeng, Li Huanjun, Zhang Xiaocan, Ma Fengxia, Kang Qian, Wang Li, Liu Xiaolian, Ma Ningning. Detection method of residual solvent trichloroacetone in folic acid by gas chromatography. CCI, 2023, 46(6): 139-142.
