摘要
目的：建立反相高效液相色谱紫外检测测定血清中异丙酚浓度的方法，并观察病人手术血清中异丙酚浓度与意识水平的关系。方法：用乙腈高氯酸（２∶１）沉淀血清蛋白后取上清液，以邻苯二甲酸二丁酯作为内标定量。结果：本法测定的线性范围为０．５μｇ·ｍｌ－１～４．０μｇ·ｍｌ－１，最低检测限为０．１μｇ·ｍｌ－１。血药浓度的测定说明：异丙酚无蓄积作用，维持意识消失的血药浓度为２．１μｇ·ｍｌ－１以上，术后苏醒时的血药浓度约为１．０μｇ·ｍｌ－１。结论：本法简单、快速，适用于手术过程中异丙酚药动学的监测。
OBJECTIVE: To develop a method for the determination of serum propofol by using a reverse phase HPLC and UV detector system, and to study the relationship between serum propofol concentration and unconsciousness in patients during surgical operation. METHODS: Propofol was extracted from serum by acetonitrile/perchloric acid (2∶1) precipitation and centrifugation. Dibutyl phthalate was used as the internal standard. RESULTS: The linear range and the lower limit for propofol quantification were within 0.5μg·ml -1 ～4.0 μg·ml -1 and above 0.10 μg·ml -1 , respectively. Our study suggests that the serum propofol concentration appropriate to the maintenance of unconsciousness should be more than 2.10 μg·ml -1 , and the concentration at which the patients can be awakened is approximately 1.0 μg·ml -1 . Our results also demonstrate that propofol does not accumulate in the body although it is administered continuously. CONCLUSION: The HPLC method for the measurement of serum propofol is simple and quick. It may be useful for the pharmacokinetic study during surgical operation.
出处
《中国药学杂志》
CAS
CSCD
北大核心
1997年第9期549-551,共3页
Chinese Pharmaceutical Journal
