Optimization of a rapid microwave-assisted extraction method for the simultaneous determination of opiates, cocaine and their metabolites in human hair

Electrokinetic extraction on artificial liquid membranes of amphetamine-type stimulants from urine samples followed by high performance liquid chromatography analysis

“…In addition, urine testing provides a relatively long detection window for drugs due to stability of drugs in its medium [5]. To date, many methods have been reported to assess amphetamines in human urine samples [6][7][8][9][10][11][12][13][14][15]. In 2006, Pedersen-Bjergaard et al introduced an interesting analytical extraction technique, termed electromembrane extraction (EME).…”

Optimization of microwave-assisted extraction of cajaninstilbene acid and pinostrobin from pigeonpea leaves followed by RP-HPLC-DAD determination

“…However, a long extraction period of 2 h was inevitable in that process. Recently, microwave-assisted extraction (MAE) has been used as an alternative to conventional methods in the extraction of natural products (Fulzele and Satdive, 2005;Rostagno et al, 2007;Chen et al, 2008), environmental sample (Serrano and Gallego, 2006;Jamali et al, 2009), medicine and food safety analyte (Desrosiers et al, 2009;Ferná ndez et al, 2009;Khajeh, 2009). MAE is an extraction technique that combines microwave and traditional solvent extraction (Khajeh, 2009).…”

Psychotropic Substances in Urban Airborne Particulates

“…Some compounds can be easily detected by both CGC and high-pressure liquid chromatography (HPLC), for instance, cocaine, which has characteristic electronimpact mass and UV fluorescence spectra (Fernandez et al, 2009). Inert nonpolar or low-polar silicone phases have chromatographic features suitable for separation and analysis by CGC.…”