Thermal Desorption (TD), a method of adsorption and desorption, which extractedcomponents to be measured in solid and liquid directly by means of inert gases. TD was highsensitivity, good reproducibility and wide applicability. It can be used with GasChromatography (GC) perfectly for the cold hydrazine and heating technology. It has been thenew darling in the field of aromatic analysis in the twenty-first century. The volatile organiccompounds (VOCs) of plants were collected and injected by TD. The VOCs of ...