Method for improving accuracy in full evaporation headspace analysis

We report a new headspace analytical method in which multiple headspace extraction is incorporated with the full evaporation technique. The pressure uncertainty caused by the solid content change in the samples has a great impact to the measurement accuracy in the conventional full evaporation heads...

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Bibliographic Details
Published in:Journal of separation science 2017-05, Vol.40 (9), p.1974-1978
Main Authors: Xie, Wei‐Qi, Chai, Xin‐Sheng
Format: Article
Language:English
Subjects:
Ethanol
Evaporation
Extraction
full evaporation
headspace gas chromatography
multiple headspace extraction
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Summary:We report a new headspace analytical method in which multiple headspace extraction is incorporated with the full evaporation technique. The pressure uncertainty caused by the solid content change in the samples has a great impact to the measurement accuracy in the conventional full evaporation headspace analysis. The results (using ethanol solution as the model sample) showed that the present technique is effective to minimize such a problem. The proposed full evaporation multiple headspace extraction analysis technique is also automated and practical, and which could greatly broaden the applications of the full‐evaporation‐based headspace analysis.
ISSN:1615-9306
1615-9314
DOI:10.1002/jssc.201601358