GC/MS Study (Guard)
Parameter Value[Guard column]
10 m EZGuard (Agilent Technologies)
10 m EZGuard (Varian)
5 m DuraGuard (Agilent Technologies)
10 m DuraGuard (Agilent Technologies)
5 m Integra-Guard (Restek)
10 m Integra-Guard (Restek)
diphenyltetramethyldisilazane deactivated retention gap (0.53 mm x 3 m)
methyl deactivated retention gap (0.53 mm x 1.5 m)