Analysis of 3 Activated Carbons Adsorb 16 Kinds of TVOC from Burning Incense by Thermal Desorption-gas Chromatography-mass Spectrometry
A thermal desorption-GC-MS method was established to analyze the adsorption of three activated carbons on 16 TVOC from burning Incense.The linearities of the 16 target TVOCs were good with correlation coefficients greater than0.9947,the method detectiom limits(MDL)of the 16 TVOCs ranged from 2.008 μg/ml to 11.783μg/ml,the quantitative limit(LOQ)ranged from 8.033 μg/ml to 47.131μg/ml.The relative standard deviations(RSDs)of the 16 TVOCs were ranged from 0.67%to 2.82%.The 20 μg/ml and 100μg/ml spiked eagle ranged from 83.24%～122.91%,which meet the detection and control requirements of the analytical method.At room temperature,the adsorption capacity of the 3 activated carbons on 16 kinds of TVOC was positively correlated with its specific surface area.The adsorption properties under the high temperature state were affected by chemical adsorption and physical adsorption,and even cause desorption after combustion.In the later stage,it is necessary to carry the corresponding oxides to strengthen chemical adsorption to achieve better adsorption effect.
Activated carbonsBurning incenseTVOCSpecific surface area
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万方数据
维普
