Rapid detection of propofol in whole blood using an automated on-line molecularly imprinted pretreatment coupled with optical fibre detection.
Here we present a validated rapid detection system for propofol, an anaesthetic with a narrow therapeutic window, in whole blood. This method utilises an on-line molecularly imprinted polymer solid-phase extraction, rather than the traditional C18 solid-phase extraction, coupled to fluorescence optical fibre detection. The linearity was assessed from 0.10-15 μg mL(-1) of propofol in whole blood, and the coefficients were greater than 0.995. The absolute recoveries of propofol were 95.81, 97.56 and 97.93% at three different concentrations. The inter-batch precision ranged from 4.3% to 8.1%, and the accuracy value ranged from 102.5% to 104.4%. The developed method was successfully applied to measure propofol concentrations in simulated whole blood samples. The entire analysis procedure lasted only 5 minutes, and the results showed no statistical difference between the new on-line method and a validated high-performance liquid chromatography method. The new on-line method, however, is faster and more convenient for the clinical real-time detection of propofol than previously reported methods.
Pharmacy College, Xinjiang Medical University, Urumqi 830011, PR China.
Li
L
Li
Haiyan
H
Ding
Bin
B
Di
Weilin
W
Li
Jian
J
Chen
D002851:Chromatography, High Pressure Liquid; D005453:Fluorescence; D006801:Humans; D054802:Molecular Imprinting; D009862:Online Systems / Q000295:instrumentation*; D055100:Optical Fibers; D015742:Propofol / Q000097:blood*; D052616:Solid Phase Extraction / Q000379:methods
D015742:Propofol