The objective of this research was to develop a reliable method for quantification of TWA concentrations of BTEX in vehicle exhaust gases using SPME. Specific objectives were to test the efficacy of retracted SPME fiber, i.e.,
The objective of this research was to develop a reliable method for quantification of TWA concentrations of BTEX in vehicleexhaust gases using SPME. Specific objectives were to test the efficacy of retracted SPME fiber, i.e.,