论文部分内容阅读
建立了顶空毛细管气相色谱法测定曲司氯铵中可能残留的乙醚、丙酮、甲醇、二氯甲烷、乙醇、三氯甲烷和二甲基甲酰胺。以二甲亚砜为溶剂,采用AC20毛细管柱和氧火焰离了化检测器。上述7种有机溶剂分别在50~1000、50~1000、30~600、6~120、50~1000、0.6~12和8.8~176μg/ml浓度范围内线性关系良好,回收率分别为98.1%、100.9%、97.5%、99.2%、98.6%、95.2%和94.2%,RSD不大于3.4%。
A headspace capillary gas chromatography was developed for the determination of diethyl ether, acetone, methanol, methylene chloride, ethanol, trichloromethane and dimethylformamide which may be remaining in. Dimethyl sulfoxide as solvent, using AC20 capillary column and oxygen flame ionization detector. The above seven kinds of organic solvents showed good linearity in the range of 50-1000, 50-1000, 30-600, 6-120, 50-1000, 0.6-12 and 8.8-176 μg / ml, respectively. The recoveries were 98.1% 100.9%, 97.5%, 99.2%, 98.6%, 95.2% and 94.2% with a RSD not greater than 3.4%.