A procedure that permits rapid development of an optimized solid phase extraction (SPE)
method for the analysis of drugs in plasma by on‐line solid phase extraction‐mass …

An on‐line solid‐phase extraction liquid chromatography/tandem mass spectrometry (SPE
LC/MS/MS) assay using a newly developed SPE column and a monolithic column was …

Abstract Several configurations using 6‐and 10‐port switching valves were studied for high
flow, on‐line extraction of rat plasma coupled to an electrospray triple quadrupole mass …

A generic method was developed for the fast determination of a wide range of drugs in
serum or plasma. The methodology comprises generic solid-phase extraction, on-line …

A sensitive, efficient, high throughput, direct injection bioanalytical method based on a single
column and high‐performance liquid chromatography (HPLC) with tandem mass …

A fully automated solid-phase extraction (SPE) method for drug screening is described. The
extraction of 19 toxicologically relevant drugs from pretreated plasma and pretreated whole …

A simplified protein precipitation/mixed‐mode cation‐exchange solid‐phase extraction
(PPT/SPE) procedure has been investigated. A mixture of acetonitrile and methanol along …

Quantitation of low concentration of drugs, metabolites and endogenous compounds in
plasma has always been a difficulty and challenge task for analytical chemists in biomedical …

A novel methylcellulose‐immobilized restricted access media column with strong cation‐
exchange groups on an internal surface (MC‐SCX) was evaluated for the direct injection …

Two on‐line configurations using multiple 6‐and 10‐port valves were investigated for high‐
flow on‐line extraction of a basic drug in rat plasma and human urine using a reversed …