Microbiological assay for ceftazidime injection

被引:0
作者
Moreno, Andreia de Haro [1 ]
Nunes Salgado, Herida Regina [1 ]
机构
[1] UNESP, Fac Ciencias Farmaceut, Programa Pos Graduacao Ciencias Farmaceut, BR-14801 Araraquara, SP, Brazil
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中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A simple, sensitive, and specific biodiffusion assay for the! antibacterial ceftazidime was developed using a strain of Staphylococcus epidermidis (ATCC 12228) as the test organism. Ceftazidime was measured in powder for injection at concentrations ranging from 100 to 400 mu g/mL. The calibration graph for ceftazidime was linear (r(2) = 1), and the method validation showed that it was precise (relative standard deviation = 0.415) and accurate. The results obtained by biodiffusion assay were statistically calculated by linear parallel model and by means of regression analysis and were verified using analysis of variance. It was concluded that the microbiological assay is satisfactory for in vitro quantification of the antibacterial activity of ceftazidime in pharmaceuticals.
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页码:1379 / 1382
页数:4
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