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Sewickley, PA, United States

Hinshaw J.V.,BPL Global
LCGC North America | Year: 2011

Headspace sampling for gas chromatography (HSGC) prevents nonvolatile residue accumulation in the inlet and column entrance while simplifying sample preparation. This installment of "GC Connections" addresses some of the details of static HSGC theory and practice for conventional liquid-phase headspace samples, with the goal of better understanding and controlling the analytical process. Source


Hinshaw J.V.,BPL Global
LC GC Europe | Year: 2012

At some point, you may need to bring an idle capillary GC inlet, column and detector back to operating condition. Here is what to do - including column installation, electronic pneumatic control calibration, system bakeout and basic test mix performance. © 2012 Advanstar Communications, Inc. Source


Hinshaw J.V.,BPL Global
LC GC Europe | Year: 2013

This month in "GC Connections" John Hinshaw examines the anatomy of chromatographic peaks with attention to features that help determine the suitability of individual chromatographs for a specific analysis task. Source


Hinshaw J.V.,BPL Global
LC GC Europe | Year: 2013

Questions about how practical proposed gas chromatography (GC) method changes are often come up during optimization for speed and resolution, or while converting to a different carrier gas. Related objective measurements such as the optimum practical carrier gas velocity were defined more than 40 years ago. This instalment reviews such metrics in the light of their relevance to today's GC challenges. Source


A gas monitoring apparatus and system that provides for reliable and accurate monitoring of gaseous hydrogen and other compounds in dielectric oil. The apparatus provides an environment for and is used in conjunction with metal oxide semiconductor sensors. Thermal conditioning zones for oil provide an environment in which variations in oil temperature and ambient temperature are eliminated to insure that analytical data are not affected by these environmental conditions.

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