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紫外分光光度法测定人血清中甲硝哒唑的研究
DETERMINATION OF METRONIDAZOLE IN HUMAN SERUM BY ULTRAVIOLET SPECTROPHOTOMETRY
【摘要】 本文采用氯仿萃取血清中甲硝哒唑,自氯仿中转溶于0.1N Hcl中,于277nm外测定吸收值;当甲硝哒唑浓度在2~50μg间,有良好的线性关系(r=0.9999,n=7),家兔50mg/kg一次灌胃,测得t峰=1.5小时,CMax=8μg/ml;患者口服0.4g,t.i.d稳态后,晨间CMin=12.14±3.14μg/ml,CMax=27μg/ml。
【Abstract】 We developed a simple method for measuring metronidazole in serum. The me-tornidazole in scrum was extracted with chloroform and redissolved in 0.1 N HCl. Its quantitation was based on spectrophotometry at 277 nm. when serum level was 2-50 ng, there existed a linear relation between absorption and metronidazole level (r= 0.9999,n= 7). After giving rabbits metronidazole 50mg/kg by stomach tube,theplasma concentrations of the drug showed Cmax =8 ug/ml and Th =1.5 hr, andapproached O in the 7th hour. In patients, whose blood level had reached a steady state after metronidazole 0.4 g tid for several days, their Cmin = 12.4 ± 3.14 ug/mlin the morning and the Cmax =26-27 μg/ml after oral intake. These results con-firm that metronidazole does not accumulate in the body.
- 【文献出处】 徐州医学院学报 ,Acta Academiae Medicinae Xuzhou , 编辑部邮箱 ,1986年02期
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