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The Engineering Toolbar
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From Parker Hannifin / Automation / Precision Fluidics Division
Gas Chromatography/Mass Spectrometry (GC/MS) and Liquid Chromatography/Mass Spectrometry (LC/MS) are analytical techniques used for chemical analysis. The properties of a sample are first separated using chromatography and then identified with the mass spectrometer. The equipment used for chromatography consists of an injection port at one end of a metal column packed with substrate material and a detector at the other end. A carrier gas propels the sample down the column while flow meters and pressure gauges in the instrument maintain a constant flow. Product Announcements
Topics of Interest
5.1. INTRODUCTION
It is possible to collect (trap) compounds as they elute from gas or liquid chromatographic columns and afterwards to obtain their mass spectra. Such gathering of mass...
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There are many drivers for vacuum configuration in mass spectrometry (MS) and other scientific instrumentation applications. These include: vacuum performance of the primary pump itself (speed,...
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4.1. INTRODUCTION
The full potential of any mass spectrometer cannot be realized without a data system. Whilst computers were introduced initially into mass spectrometry to aid accurate mass...
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3.7 Pyrolysis Gas Chromatography
3.7.1 Theory
Pyrolysis is simply the breaking of large, complex molecules into smaller fragments by the application of heat. When the heat energy applied to a...
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Overview
In this chapter the instrumentation used for the determination of volatile materials present in polymers is discussed. These include:
Monomers, e.g., styrene, acrylonitrile, vinyl...
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