Determination of the Titer of Azithromycin by Turbidimetric Method / 中国药房

ABSTRACT

OBJECTIVE: To develop a method for the determination of the titer of azithromycin. METHODS: Turbidimetric method was adopted to determine azithromycin and which was compared with cup-plate method. RESULTS: The linear range of azithromycin was 0.4～2.0IU?mL-1(r=0.999 1), with its recovery rate at 99.70%～100.02%(RSD=0.22%～0.46%), the determination results of 2 kinds of methods was no significant difference. CONCLUSION: Turbidimetric method was proved to be more rapid and convenient than the cup-plate method.