Diazepam and nordiazepam in plasma: liquid-liquid and solid phase extraction in sample pre-treatment for high performance liquid chromatography analysis.

Rapid analysis of olanzapine and desmethylolanzapine in human plasma using high-performance liquid chromatography with coulometric detection. Determination of olanzapine in rat

A suitable high-performance liquid chromatography method was developed and validated, using LLE and SPE as the extraction procedures, for the simultaneous detection of

A liquid-liquid extraction (LLE) combined with high-performance liquid chromatography-diode array detection method for simultaneous analysis of four chemically and

Therefore a simple, robust and fast liquid-liquid extraction (LLE) followed by high- performance liquid chromatography method is described that could be used for

Para a determinação em amostras ambientais, etapas de extração/pré concentração desses compostos como extração em fase sólida (solid phase extraction SPE) e extração

Quantitative analysis of vitamin in a feed using normal phase high performance liquid chromatography.. Separation of the natural retinoids by high-pressure

Determination of Estrogens in Milk Using Polypyrrole Fiber-Mediated Solid-Phase Extraction Followed by High Performance Liquid Chromatography.. Lanlan Wei, a,# Yan Yan, b,#

Analysis of multiple pesticide residues in tobacco using pressurized liquid extraction, automated solid-phase extraction clean up and gas chromatography–tandem mass