GC/MS를 이용한 VOC 성분의 주입방식별 검량특성에 대한 연구
Calibration Characteristics of VOCs by a Gas Chromatography with Mass Spectrometry (GC-MS) in Relation to Injection Approaches
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Abstract
In this study, calibration characteristics of VOCs were investigated between direct injection (DI) and solidphase microextraction (SPME) using gas chromatography with mass spectrometry. For this, VOC standards with 54 major compounds were analyzed in a series of calibration experiments. The result of correlation analysis, if analyzed by calibration slopes between direct injection and SPME, showed that the recovery rate of SPME method was 36% of direct injection. As the sensitivity of GC/MS system was high in relation with carbon number, the relationship between slope ratio of unknown compound (X) and toluene (T) (slope (X/T)) and the corresponding carbon number (C (X/T)) may be applied to the instant derivation of calibration slopes for many unknown compounds.
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