Influence of silica gel humidity on the determination of hydrocarbon types in gasoline by the ASTM D 1319 standard test method in relation to proficiency test reproducibility

The results obtained for the olefin content of gasoline with the ASTM D1319 Standard Test Method show a strong increase with the humidity of the silica gel used, while such an increase is absent for the aromatic hydrocarbon content. These results seem to suggest that the increased experimental repro...

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Bibliographic Details
Published in:Accreditation and quality assurance 2006-10, Vol.11 (10), p.521-522
Main Authors: VERPLAETSE, H, LACOURT, M
Format: Article
Language:English
Subjects:
Analytical chemistry
Aromatic hydrocarbons
Chemistry
Chromatography
Exact sciences and technology
Gasoline
Humidity
Hydrocarbons
Laboratories
Reproducibility
Silica gel
Test methods
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Summary:The results obtained for the olefin content of gasoline with the ASTM D1319 Standard Test Method show a strong increase with the humidity of the silica gel used, while such an increase is absent for the aromatic hydrocarbon content. These results seem to suggest that the increased experimental reproducibility, compared to the value of the ASTM D1319 Standard Test Method, which is often observed for the olefin content in proficiency tests, may be due to the use of insufficiently dry silica gel.
ISSN:0949-1775
1432-0517
DOI:10.1007/s00769-006-0151-7