Louis, MO) 3 49 compounds are analyzed 49 compounds are analyzed among 54 compounds among 54 compounds (
haloalkane, chloropropene, (
haloalkane, chloropropene, chloroethene, aromatic, chloroethene, aromatic, and diene) and diene) 4 Direct injection of liquid Vapor phase injection standard (DILS) via SPME (SPME) 5 [R.sup.2] = 0.9963 [+ or -] [R.sup.2] = 0.9854 [+ or -] 0.0278 (n = 51) 0.0414 (n = 50) RSE = 2.85 [+ or -] RSE = 1.59 [+ or -] 2.26% (n = 51) 1.17% (n = 49) 6 27.5 [+ or -] 30.3 [+ or -] 45.3% (n = 49) 34.2% (n = 49) (a) Pretreatment approaches: (1) Exp-TD: thermal desorption, (2) Exp-DI: direct injection, and (3) Exp-SPME: solid-phase microextraction (SPME).