Research on Traceability Method of Emission Compounds from Vehicle Seat Based on GC-IMS

Abstract

The odor in a car can have a negative impact on human health, mood, and mentality. Therefore, it is imperative to find an appropriate method to trace the odor and identify the substances that cause it. Three odor testing methods were utilized to evaluate seat-related materials. Subjective evaluation still holds an advantage in odor typing, and many odor types of vehicles and seats are inevitably correlated. By combining subjective and objective methods, 11 types of odor substances can be identified using GC-MSODP. Based on these substances, the relationship with the odor type can be determined in a single step. As a purely objective testing method, GC-IMS can identify 16 types of odor substances by leveraging its principle advantages, which can replace the olfactory identification of the ODP process, reduce harm to personnel, and also facilitate large-scale testing. Degree analysis and other procedures can be employed to effectively control product consistency. However, to achieve better odor traceability and consistency control, it is necessary to develop accurate quantitative methods for GC-IMS.