A high performance liquid chromatography(HPLC) using fused-core silica particles column was developed for the rapid determination 16 local anesthetic components,including procaine,tetracaine,methyl isoeugenol,chloroprocaine hydrochloride,lidocaine hydrochloride,benzocaine,ropivacaine mesylate,butacaine sulphate,procainamide,prilocaine,bupivacaine,benoxinate hydrochloride,eugenol,pramoxine hydrochloride,cinchocaine and methyl eugenol.The samples were ultrasonically extracted with 0.1%hydrochloride-methanol,and separated on an Agilent Poroshell 120 EC-C18(50 mm×4.6 mm×2.7 μm) at 35 ℃ by gradient elution,with dipotassium hydrogen phosphate solution(pH 3.0)-methanol-acetonitrile as mobile phase at a flow rate of 1.5 mL/min.The detection wavelengths for diode array detector were set at 210 nm and 280 nm.Quantification analysis was performed by the external standard method.Results indicated that the calibration curves for the 16 compounds showed good linearity in a certain range of mass concentration with their correlation coefficients not less than 0.999 7.The limits of detection(LOD,S/N=3) and limits of quantitation(LOQ,S/N=10) for ropivacaine mesylate were 3.1 μg/g and 10.2 μg/g,respectively.The LODs and LOQs for other 15 compounds were 1.0 μg/g and 3.3 μg/g,respectively.The average recoveries at three spiked levels ranged from 93.3%to 103%,with relative standard deviations(RSD) of 0.08%-1.2%.The method was rapid and accurate,and could be used for the rapid screening of local anesthetic components in adult products,indicating its extensive application prospect.
Rapid Screening for 34 Benzodiazepines in Dried Blood Spots Using Direct Analysis in Real Time-Tandem Mass Spectrometry
Rapid Screening of Chemical Risk Substances in Honey by Sugar Extraction/Ultra High Performance Liquid Chromatography-Quadrupole/Electrostatic Field Orbitrap High Resolution Mass Spectrometry
Rapid Screening of 112 Kinds of Illegally Added Chemical Compounds in Anti-fatigue Health Food by Ultra-high Performance Liquid Chromatography Quadrupole Electrostatic Field Orbital Trap Mass Spectrometry
Rapid Screening of 69 Veterinary Drug Residues in Milk by Ultra-high Performance Liquid Chromatography-Quadrupole-Time-of-flight Mass Spectrometry
Related Author
No data
Related Institution
Institue of Materia Medica,Peking Union Medical College,Chinese Academy of Medical Science
Forensic Science Service of Beijing Public Security Bureau,Key Laboratory of Forensic Toxicol,Ministry of Public Security
School of Criminal Investigation,People’s Public Security University of China
Hebei Provincial Center for Disease Control and Prevention