All News

Letters about calculating peak asymmetry and gas cylinder safety.

The authors studied the retention behavior of reversed-phase HPLC columns under 100% aqueous mobile-phase conditions.

The authors present their observations from developing data-handling software for GC × GC separations.

Ron Majors describes developments reported at HPLC 2002.

Leslie Ettre describes the development and applications of this long-forgotten unit.

John Hinshaw reports about the 25th International Symposium on Capillary Chromatography and Electrophoresis.

Guest authors describe how this validation is performed routinely in their laboratory.

This month's column discusses a performance qualification test designed by PerkinElmer Analytical Instruments (Shelton, Connecticut).

Product release from NLG Analytical...

Solid-phase extraction of 6-monoacetylmorphine from urine followed by GC analysis. (Phenomenex Inc.)

Automated SPE in combination with large-volume injection GC–MS analysis of semivolatile compounds. (Horizon Technology, Inc.)

SEC analysis of hemoglobin using multiangle light-scattering detection. (Wyatt Technology Corporation)

Analysis of several commercial diet soft drinks using HPLC with a 100% water mobile phase. (ZirChrom Separations, Inc.)

Pesticide analysis using HPLC with postcolumn derivatization. (Pickering Laboratories, Inc.)

Reversed-phase columns retain and separate peptides using MS-friendly mobile-phase additives without compromising peak shape, peak capacity, or resolution. (Waters Corporation)

Replacing sodium chloride with sodium perchlorate in the separation of an antibody-based fusion protein provided the robustness of an otherwise problematic separation method. (Tosoh Biosep LLC)

Analysis of triglycerides using HPLC with evaporative light-scattering detection.

TLC analysis of morphine. (Analtech, Inc.)

LC analysis of phospholipids. (Advanced Separation Technologies Inc. [astec])

Analysis of a combinatorial library using evaporative light-scattering detector for concentration detection in an LC–MS system. (Polymer Laboratories, Inc.)

Reversed-phase separation of antidepressants on new C18 and C8 silica-based HPLC columns. (Dionex Corporation)

Two reversed-phase separations of EDTA in a hydrocortisone cream and a nasal spray. (Hamilton Company)

Analysis and purification of chiral compounds using SFC with a laser polarimeter detector. (Regis Technologies Inc.)

GC analysis of essential oils. (SGE, Incorporated)

Comparison of evaporative light-scattering detection and UV-absorbance detection in the HPLC analysis of succinic acid. (Polymer Laboratories, Inc.)

Analysis of heparin using SEC with triple-angle light scattering detection. (Wyatt Technology Corporation)

Description of a non-liquid-filled light-guiding capillary with a polyimide coating. (Polymicro Technologies, LLC)

Fast nitrosamine analysis using a zirconia-based HPLC stationary phase. (ZirChrom Separations, Inc.)