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牛奶和牛血浆中头孢喹肟HPLC-MS/MS检测方法的建立 被引量:8

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摘要 建立了头孢喹肟在牛奶和牛血浆中的高效液相色谱-串联质谱(HPLC-MS/MS)检测方法。牛奶样品用10%三氯乙酸沉淀蛋白,两次提取后过Strata-X-C固相萃取柱,30%乙腈洗脱后供HPLC-MS/MS检测。血浆样品用乙腈沉淀蛋白,高速离心后吸取0.2 mL上清液,与0.8 mL水混合后直接检测。以0.1%甲酸水-乙腈为流动相梯度洗脱,流速0.25 mL/min,进样量5!L。头孢喹肟在牛奶中的回收率在76.70%~87.02%之间,定量限为5 ng/mL。牛血浆中的回收率在89.41%~98.25%之间,定量限为2 ng/mL。结果表明,该方法简单快速、灵敏度高,适用于头孢喹肟在奶牛乳和血浆中的残留检测。
出处 《畜牧与兽医》 北大核心 2012年第11期55-59,共5页 Animal Husbandry & Veterinary Medicine
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