The application of headspace sampling gas chromatography in complex matrix volatile components is reviewed. Three important modes of headspace analysis are summarized and detailed. The relevant principles of headspace analysis and the parameters of the entire headspace analysis system are introduced Optimization process. Overview of headspace-gas chromatography analysis of volatile organic compounds in biological samples, detection of residual organic solvents in pharmaceuticals, analysis of volatile organic compounds in polymeric materials, and harmful organic volatility in the environment
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