摘要
用循环伏安法(CV)研究了聚乙二醇(PEG)-6000/磷酸钾(K_3PO_4)双水相体系中各种组分对麦迪霉素推动质子在水/硝基苯(W/NB)界面上转移行为的影响.用液/液界面电化学分析技术检测了麦迪霉素在双水相体系中的分配情况,发现了麦迪霉素在双水相体系中的选择性分配,其分配系数大于44.测定的线性范围为50～800μg/mL,回收率大于93%.
The effect of various components in aqueous biphase systems containing polyethylene glycol-6000 and potassium phosphate on the transfer behaviour of the proton across the water/nitrobenzene interface facilitated by medymycin was studied by cyclic voltammetry. The partition of medymycin in aqueous biphase systems was determined by electrolysis at the liquid/liquid interface. Good selective partition character for medymycin in aqueous biphase systems was observed, and the partition coefficient was larger than 44. The determined linear range was 50-800μg/mL, and recovery rate was larger than 93%.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1995年第5期517-521,共5页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金
