建立了外加水模式抑制电导检测的离子色谱法定性定量分析盐酸头孢吡肟中的N 甲基吡咯烷。色谱条件:色谱柱为IonPacCS12A阳离子交换柱(250mm×4mmi d )及其相应的CS12A保护柱(50mm×4mmi d ),流动相为20mmol/L甲基磺酸 20%乙腈...建立了外加水模式抑制电导检测的离子色谱法定性定量分析盐酸头孢吡肟中的N 甲基吡咯烷。色谱条件:色谱柱为IonPacCS12A阳离子交换柱(250mm×4mmi d )及其相应的CS12A保护柱(50mm×4mmi d ),流动相为20mmol/L甲基磺酸 20%乙腈水混合溶液(体积比为87∶13),流速为1 0mL/min,自再生微膜阳离子抑制器,外加水模式,电导检测。N 甲基吡咯烷在0 38～60 8mg/L时,峰面积和峰高与样品质量浓度均有良好的线性关系(r2=0 998);检测限为0 1mg/L。展开更多
A flow injection chemiluminescence method for the determination of Cefepime hydrochloride is descrbed.The method is based on the chemiluminesence emitted during the oxidation of Cefepime hydrochloride by N-bromosuccin...A flow injection chemiluminescence method for the determination of Cefepime hydrochloride is descrbed.The method is based on the chemiluminesence emitted during the oxidation of Cefepime hydrochloride by N-bromosuccinimide（NBS）in alkaline medium in the presence of fluorescein as energy transfer.The chemiluminescence intensity is proportional to cefepime hydrochloride concentration over the range 0.05mg·L-110mg·L-1.The detection limit is 29μg.L-1and the relative standard deviation is 4.3% for 5mg·L-1cefepime hydrochloride（n=11）.This method had been successfully applied to determination of cefepime hydrochloride in injections.展开更多
文摘A flow injection chemiluminescence method for the determination of Cefepime hydrochloride is descrbed.The method is based on the chemiluminesence emitted during the oxidation of Cefepime hydrochloride by N-bromosuccinimide（NBS）in alkaline medium in the presence of fluorescein as energy transfer.The chemiluminescence intensity is proportional to cefepime hydrochloride concentration over the range 0.05mg·L-110mg·L-1.The detection limit is 29μg.L-1and the relative standard deviation is 4.3% for 5mg·L-1cefepime hydrochloride（n=11）.This method had been successfully applied to determination of cefepime hydrochloride in injections.
