Thermal Desorption Techniques for Gas Chromatographic Analysis of Particulate Matter
作者:
StanleyL. Kopczynski,
期刊:
Analytical Letters
(Taylor Available online 1984)
卷期:
Volume 17,
issue 2
页码: 97-111
ISSN:0003-2719
年代: 1984
DOI:10.1080/00032718408065269
出版商: Taylor & Francis Group
关键词: Polycylic aromatic hydrocarbons;gas chromatography;aerosols;thermal desorption
数据来源: Taylor
摘要:
Polycyclic aromatic hydrocarbons are extracted from atmospheric particulate samples with a thermal desorption technique that circumvents the need for lengthy solvent extraction procedures prior to gas chromatographic analysis. The polycyclic aromatic hydrocarbons are extracted by vacuum-sublimation and collected in a cold trap. The sublimed species are then cryogenically focused at the head of a fused silica capillary column by a thermal purging technique and subsequently analyzed. The technique is applicable to screening tests for selected polycyclic aromatic hydrocarbons when used with a sufficiently specific detector, and has the advantages of simplicity and low cost.
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