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REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

OSIM Nr. R102355
ISSN Online 2668-8212
ISSN Print: 1582-9049
ISSN-L: 1582-9049

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Revista de Chimie (Rev. Chim.), Year 2016, Volume 67, Issue 3,



Marius Gheorghe Miricioiu, Violeta Niculescu, Oana Romina Dinca, Florin Mitu, Mihaela Emanuela Craciun

Analytical Errors in Routine Gas Chromatography Analysis

Abstract:

Conducting the analysis of trace-level impurities in high purity gases by gas chromatography technique could be a real challenge. This is because the several possible sources of analytical errors which may occur in daily operation. These errors may include contamination, measurement errors and mechanical/instrument errors. This work assesses possible contamination situations of the analyte gas caused by pressure reducers. The influence on the measurements by gas chromatography (GC) is highlighted in two practical situations, i) first, with impurities such as oxygen (O2) and nitrogen (N2) from atmospheric air, and ii) second, with carbon dioxide (CO2) from previous analysis. The solutions are also presented and experimentally proven, so that the problems to be avoided and to achieve reproducible results, to shorten the analysis time and to extend the lifetime of GC separation columns.
Keywords:
gas chromatography; analytical errors; routine analysis

Issue: 2016, Volume 67, Issue 3
Pages:
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This article is published under the Creative Commons Attribution 4.0 International License
 
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