This paper describes determination of lead in gasoline by graphite furnace atomic
absorption spectrometry after application of an air-assisted liquid–liquid microextraction
method using deep eutectic solvent. In this study, for the first time, a ternary deep eutectic
solvent was synthesized from menthol, mandelic acid, and glycolic acid and was used as a
complexing agent and an extraction solvent, simultaneously. Under optimized conditions,
the proposed method made possible the determination of lead in the range of 5–50 ng L− 1 …

A microwave-induced air–assisted liquid–liquid microextraction method has been proposed
for the pretreatment/quantization of salbutamol in exhaled breath condensate (EBC)
samples prior to gas chromatography-mass spectrometry. In this procedure, 1-fluoro-2, 4-
dinitrobenzene and N, N-diethylethanolammonium chloride: dichloroacetic acid: octanoic
acid deep eutectic solvent were exploited as derivatization reagent and extraction solvent,
respectively. A mixture of the sample solution and pyridine was transferred into a test tube …