Liquid Chromatography (LC/HPLC)

This month's installment of "Innovations in HPLC" discusses the use of HPLC for these recent threats to health and safety.

What should you do when a peak is too small or too large?

A rapid and environmentally friendly LC method for the simultaneous determination of 12 UV filters in cosmetic samples using ethanol as the mobile phase.

John Dolan looks at ways to get to the root of some of the most common problems encountered in the lab.

In the inaugural installment of his new column, LCGC veteran Michael Swartz provides an overview of some of the newer LC technology used in contemporary LC laboratories.

This article describes methods to quantitatively analyse genotoxic and potentially genotoxic impurities in pharmaceutical ingredients

A fast clean and simple method to determine three organotin compounds in environmental samples is described

Kevin Schug talks to Harold McNair about his illustrious career in chromatography

Guest author Uwe Neue develops the principle of kinetic plots from scratch to make them more accessible to a wider audience.

The authors present the first installment in their examination of the basics of method validation.

In this installment of "Column Watch," Ron Majors looks at the results of a recent HPLC column survey conducted by LCGC North America.

Dionex Corporation (Sunnyvale, California) will be hosting a series of free seminars on liquid chromatography throughout the United States and Canada from September 9?October 29, 2009.

In Part II, we review MS ionization suppression; column, pH, and temperature selection; and system peaks and column equilibration issues associated with the use of five volatile perfluorocarboxylic acid reagents in LC.

What's the best way to integrate a peak?

Advion BioServices (Ithaca, New York) announced the expansion of its existing LC–MS Biomarker Services Group, which was launched in 2008 to develop and deliver customized assays for peptide, amino acid, lipid, neurotransmitter, and nucleotide biomarkers.

A novel way of separation for polyolefins.

How to determine PFCs in water by SPE-LC–MS.

John Dolan looks at the signal-to-noise ratio and its relationship to uncertainty in a measurment.

An optimization strategy to obtain the best possible performance in the shortest analysis time for comprehensive off-line 2D-LC.

This month's column discusses the type of problems one can encounter when using methods supplied to us by other.

How to improve chromatographic performance using ultrapure water

This work demonstrates gains of up to 7-fold in signal to noise ratio with APCI mass spectrometry and reduction in analysis times of 5- to 8-fold

LEAP Technologies and PerkinElmer have entered into a resale agreement that will allow the company to incorporate PerkinElmer?s UHPLC and HPLC technology into the front-end automation systems it provides.

Discover the advantages of using UHPLC–MS–MS for lactotripeptide analysis

October 2006. The authors demonstrate the use of multiple-injection affinity capillary electrophoresis (MIACE) and several variations to MIACE to determine binding constants between the glycopeptide antibotics vancomycin, ristocetin, and teicoplanin from Streptomyces orientalis, Nocardia lurida, and Actinoplanes teichomyceticus, respectively, and D-Ala-D-Ala terminus peptides.