In:
Journal of Separation Science, Wiley, Vol. 28, No. 14 ( 2005-09), p. 1648-1657
Abstract:
Semivolatile organic compounds (SVOC) associated with ambient particles smaller than 2.5 μm (PM 2.5 ) were determined in the city of Augsburg, Germany. Daily samples were collected at a central monitoring station from late summer 2002 to spring 2005. SVOC were analysed by direct thermal desorption (DTD)‐GC and comprehensive 2‐D GC coupled to TOF MS (DTD‐GC‐TOF MS and DTD‐GC×GC‐TOF MS). Two hundred compounds were quantified and ‘semi‐quantified’ on a daily basis by DTD‐GC‐TOF MS. n ‐Alkanes, n ‐alkan‐2‐ones, n ‐alkanoic acid methyl esters, acetic acid esters, n ‐alkanoic acid amides, nitriles, linear alkylbenzenes and 2‐alkyl‐toluenes, hopanes, PAH, alkylated PAH and oxidised PAH, and several compounds that are not grouped in homologous rows or compound classes were determined. Changes in concentration and pattern of several target compounds as well as methodological advantages and restrictions of DTD‐GC‐TOF MS are briefly discussed. DTD‐GC‐TOF MS analysis provided data particularly suited for source receptor modelling and epidemiological time series studies on the health effects of ambient PM. GC×GC enhances chromatographic resolution of PM samples and therefore amplifies the peak identification capabilities of the TOF MS.
Type of Medium:
Online Resource
ISSN:
1615-9306
,
1615-9314
DOI:
10.1002/jssc.200500120
Language:
English
Publisher:
Wiley
Publication Date:
2005
detail.hit.zdb_id:
2047990-6
Permalink