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Easony

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zb6824785: 金币+20, 翻译EPI+1, ★★★★★最佳答案, Many many thanks! 2014-02-28 14:32:34

The EPA regulation in the United States in 114 kinds of organic priority detection objects 45 kinds of volatile components, accounting for 40%.
Gas chromatography separation analysis is almost the only way to this kind of components.
According to the sample with different method, purge and trap can be divided into thermal desorption method, the main drawback is that a long time,
Need special equipment, the advantage is low detection limit.

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