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采用气相色谱法测定了“三步法”新工艺生产的法莫替丁成品中残留溶剂二甲基甲酰胺的残留量 ,浓度在 0 0 30 2～ 0 .0 112 1mg·mL-1 范围内具有良好的线性关系 该方法变异系数为 2 0 6 % ,回收率为 99 5 %
Gas chromatography was used to determine the residual amount of dimethylformamide in famotidine product produced by the new three-step process at a concentration range of 0 030 2-0. 0 1 1 mg · mL -1 Has a good linear relationship The method of variation coefficient of 206%, the recovery rate of 99.5%