Study on thermal desorption of Formaldehyde,Benzene and Toluene on activated Carbon and Zeolite

Thermal desorption of formaldehyde,benzene and toluene on activated carbon and zeolite was studied by HSGC in this article.First of all,the reproducibility of injection method of GC was validated.There was no influence on detection and response of FID by column temperature.The standard curve of formaldehyde,benzene and toluene were wade.The curve of thermal desorption of formaldehyde,benzene and toluene on activated carbon and zeolite was gotten in different temperature.As a result,the most of formaldehyde and toluene on activated carbon was desorpted in lower temperature.However,benzene on zeolite was easier to desorpt.