摘要: Hydrocarbons play a significant role in the chemistry of troposphere. They are not only emitted into atmosphere from wide variety natural and anthropogenic sources but they may also be formed via atmospheric transformations. This chapter focuses on volatile organic compounds (VOCs). The collection measurement VOCs has been subject countless studies. Measurements have generally made with gas chromatographic analyses air samples collected canisters, adsorbents or cryostats. sample-collection step plays crucial analytical process, as it determines representativeness sample. Canisters most useful for very volatile, nonpolar while sorbent tubes more applicable less analytes. Their use monitoring resulted development number protocols analysis broad range VOCs.
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