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Elimination Kinetics of Ceftiofur Sodium in Dairy Cows after Intramammary Administration
Author(s): 
Pages: 26-28
Year: Issue:  9
Journal: Chinese Journal of Veterinary Drug

Keyword:  ceftiofur sodiumUPLC - MS/MSelimination kinetics;
Abstract: 在奶牛乳房内灌注头孢噻呋钠后,采用超高效液相色谱一串联质谱法测定牛乳中头孢噻呋的浓度,对其消除动力学进行了研究。3头实验奶牛按每个乳房0.3g头孢噻呋灌注,牛乳中药物达到的最高浓度Cmax=107.89μg/mL,达峰时间Tmax=8h,药物半衰期T1/2=13.97h。在乳房内用药后的最初56h内,头孢噻呋浓度快速下降;最后一次给药88h后,所有乳腺中头孢噻呋的浓度都低于允许限量(0.1μg/m...
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