All News

Dissolution testing using HPLC and UV spectroscopy. (Waters Corporation)

Ion-exchange separation of hydrolyzed oligonucleotides. (ZirChrom Separations, Inc.)

Description of software for HPLC method development. (Waters Corporation)

GC analysis of the EPA 8270 semivolatiles mixture. (SGE, Incorporated)

Ion-exchange analysis of a humanized monoclonal antibody. (Dionex Corporation)

Analysis of star-branched polymers using SEC with multiangle light-scattering detection. (Wyatt Technology Corporation)

Protein sample preparation using filtration microplates. (Orochem Technologies)

Thin-layer chromatography analysis of steroids. (Analtech, Inc.)

Capillary GC analysis using microwave oven column heating. (Antek Instruments L.P.)

This article describes a method development approach that uses different packing materials and mobile-phase pH levels to optimize the chromatographic separation of degradation products from active ingredients.

John Hinshaw examines the principal safety issues surrounding the handling and use of compressed gas cylinders.

John Dolan focuses on several aspects of column temperature, which can affect retention, selectivity, peak shape, and column pressure.

The authors suggest ways to avoid phase collapse and regenerate collapsed phases.

John Dolan discusses the effects of peak tailing on resolution.

The second of a two-part series dealing with the lives and activities of important chromatographers who were active during the early growth and expansion of GC.

The author reports results from a systematic study of the effect of water injections on column performance with a number of common GC stationary phases.

John Hinshaw presents a report about the new GC instruments and accessories exhibited at the 53rd Pittsburgh Conference.

The guest authors review the commonly used sample preparation procedures for genomic nucleic acid purification and introduce the automation choices for high-throughput genomic sample preparation.

The authors present an efficient, informed approach to HPLC column selection based upon complementary decisions regarding bonded-phase and particle physical characteristics.

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