The wide abuse of barbiturates has aroused extensive public concern. Therefore, the
determination of such drugs is becoming essential in therapeutic drug monitoring and …

Simultaneous determination of seven barbiturates in human whole blood and urine by
combining direct immersion solid-phase microextraction (DI–SPME) with gas …

Solid-phase microextraction (SPME) in conjunction with quadrupole ion trap GC–MS was
applied to the determination of a series of barbiturates. A 65 μm Carbowax–divinylbenzene …

A rapid screening method for the quantitation and identification of 7 barbiturates in plasma is
presented. The method employs solid-phase extraction at pH 3 using X-5 resin as …

A rapid, straightforward, and sensitive approach to quantifying enantiomeric barbiturates in
serum was developed by integrating ultrasound-assisted dispersive liquid–liquid …

In this paper, a novel and simple method for the determination of trace amounts of barbituric
acid in water and biological samples was developed by using dispersive liquid–liquid …

In this study, a new extraction procedure is introduced based on electrically assisted solvent
bar microextraction. In the first step, the analytes are transferred from sample solution to the …

Here, we present a method for measuring barbiturates (butalbital, secobarbital,
pentobarbital, and phenobarbital) in whole blood samples. To accomplish these …

Two microextraction techniques based on hollow fiber liquid-phase microextraction (HF-
LPME) and ultrasound-assisted low-density solvent dispersive liquid–liquid microextraction …

A novel method was developed for the analysis of four β-blockers, namely sotalol, carteolol,
bisoprolol, and propranolol, in human urine by coupling carrier-mediated liquid phase …