Chinese Journal of Chromatography ›› 2014, Vol. 32 ›› Issue (9): 906-912.DOI: 10.3724/SP.J.1123.2014.07045

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Sample preparation methods for chromatographic analysis of organic components in atmospheric particulate matter

HAO Liang1,2, WU Dapeng1, GUAN Yafeng1   

  1. 1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
    2. University of Chinese Academy of Sciences, Beijing 100039, China
  • Received:2014-07-25 Revised:2014-08-06 Online:2014-09-08 Published:2014-08-30

Abstract:

The determination of organic composition in atmospheric particulate matter (PM) is of great importance in understanding how PM affects human health, environment, climate, and ecosystem. Organic components are also the scientific basis for emission source tracking, PM regulation and risk management. Therefore, the molecular characterization of the organic fraction of PM has become one of the priority research issues in the field of environmental analysis. Due to the extreme complexity of PM samples, chromatographic methods have been the chief selection. The common procedure for the analysis of organic components in PM includes several steps: sample collection on the fiber filters, sample preparation (transform the sample into a form suitable for chromatographic analysis), analysis by chromatographic methods. Among these steps, the sample preparation methods will largely determine the throughput and the data quality. Solvent extraction methods followed by sample pretreatment (e. g. pre-separation, derivatization, pre-concentration) have long been used for PM sample analysis, and thermal desorption methods have also mainly focused on the non-polar organic component analysis in PM. In this paper, the sample preparation methods prior to chromatographic analysis of organic components in PM are reviewed comprehensively, and the corresponding merits and limitations of each method are also briefly discussed.

Key words: atmospheric particulate matter, chromatographic analysis, organic components, sample preparation

CLC Number: