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
In alkaline conditions,Sodium doecyl sulfate and Bromide hexadecyltrimethyl-ammonium(CTMAB)-Trypan blue(TB) occur faded response to form blue ion compounds.The maximum faded wavelength at 564nm.The apparent molar abso...In alkaline conditions,Sodium doecyl sulfate and Bromide hexadecyltrimethyl-ammonium(CTMAB)-Trypan blue(TB) occur faded response to form blue ion compounds.The maximum faded wavelength at 564nm.The apparent molar absorptivities(ε) is 2.73×104 L·mol-1·cm-1.The linear ranges is 0～7.21mg/L.The concentration of Sodium doecyl sulfate in definite range obeys Beer’s law.A new spectrophotometric method for the determination of Sodium doecyl sulfate has been developed.The method was applied to determine the content of the anion surface active agent Sodium doecyl sulfate in landfill leachate with satisfactory results.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.
文摘In alkaline conditions,Sodium doecyl sulfate and Bromide hexadecyltrimethyl-ammonium(CTMAB)-Trypan blue(TB) occur faded response to form blue ion compounds.The maximum faded wavelength at 564nm.The apparent molar absorptivities(ε) is 2.73×104 L·mol-1·cm-1.The linear ranges is 0～7.21mg/L.The concentration of Sodium doecyl sulfate in definite range obeys Beer’s law.A new spectrophotometric method for the determination of Sodium doecyl sulfate has been developed.The method was applied to determine the content of the anion surface active agent Sodium doecyl sulfate in landfill leachate with satisfactory results.
