title: Hollow fiber-based liquid-liquid-liquid microextraction combined with electrospray ionization-ion mobility spectrometry for the determination of pentazocine in biological samples.
abstract: A new method based on liquid-liquid-liquid microextraction combined with electrospray ionization-ion mobility spectrometry (LLLME-ESI-IMS) was used for the determination of pentazocine in urine and plasma samples. Experimental parameters which control the performance of LLLME, such as selection of composition of donor and acceptor phase, type of organic solvent, ionic strength of the sample, extraction temperature and extraction time were studied. The limit of detection and relative standard deviation of the method were 2 ng/mL and 5.3%, respectively. The linear calibration ranged from 10 to 500 ng/mL with r(2)=0.998. Pentazocine was successfully determined in urine and plasma samples without any significant matrix effect.
authors.affiliation: Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran. saraji@cc.iut.ac.ir
authors.forename: Mohammad
authors.initials: M
authors.lastname: Saraji
authors.forename: Mohammad Taghi
authors.initials: MT
authors.lastname: Jafari
authors.forename: Hossein
authors.initials: H
authors.lastname: Sherafatmand
mesh_terms: D005591:Chemical Fractionation / Q000379:methods*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D016014:Linear Models; D008297:Male; D010423:Pentazocine / Q000032:analysis* / Q000097:blood / Q000737:chemistry / Q000652:urine; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012965:Sodium Chloride / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D013696:Temperature
chemical_list: D012965:Sodium Chloride; D010423:Pentazocine