In chemical analysis, sample preparation is frequently considered the bottleneck of the
entire analytical method. The success of the final method strongly depends on …

The geometry of an electrospray ion source plays important roles in the processes of analyte
desolvation, ionization, transportation, and detection in a mass spectrometer. We provide a …

Since the early 1980s, there has been a steady increase in the use of nonvolatile fluorinated
organic compounds for a variety of industrial and commercial applications. The industrial …

Sewage treatment plant (STP) effluents with primarily domestic inputs are strongly
suspected to be an important source of natural and synthetic estrogens contaminating the …

Perfluorocarboxylic acids (PFCAs) are persistent chemicals that have been found widely in
the environment. Their accurate determination in environmental matrixes, particularly soil …

The ionization and transmission efficiencies of an electrospray ionization (ESI) interface
were investigated to advance the understanding of how these factors affect mass …

Dispersive solid-phase extraction (DSPE) combined with dispersive liquid–liquid
microextraction (DLLME) has been developed as a new approach for the extraction of four …

This paper describes a fully automated online method for solid-phase extraction coupled
with liquid chromatography and tandem mass spectrometry using atmospheric pressure …

The effect of liquid chromatography separation on liquid chromatography–tandem mass
spectrometry (LC–MS–MS) signal response for the characterization of low-molecular-mass …

A simple, rapid, rugged, sensitive, and specific method for the confirmation and quantitation
of 10 β-lactam antibiotics in fortified and incurred bovine kidney tissue has been developed …