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法莫替丁(1)为新一代H2拮抗药,现为世界十大畅销药之一。该产品的重结晶溶剂为二甲基甲酰胺(2)。本文采用气相色谱法对样品中2的残留量进行测定。1 仪器与试药HP5890型气相色谱仪。1样品(宜昌意腾制药有限公司,批号980501、980502、980503)。2 实验方法采用外标法测定。2.1
Famotidine (1) is a new generation of H2 antagonists and is now one of the top 10 best selling drugs in the world. The recrystallization solvent for this product is dimethylformamide (2). In this paper, gas chromatography was used to determine the amount of 2 in the sample. 1 instruments and reagents HP5890-type gas chromatograph. 1 samples (Yichang Italian Teng Pharmaceutical Co., Ltd., lot number 980501,980502,980503). 2 experimental methods using external standard method. 2.1