Conclusions
Using alternative stationary phases can give
complimentary selectivity to confirm analytes unresolved
by standard alkyl phases.
Phaseswith high and complimentary selectivity can be
usedwithin a guard cartridge to enhance critical pair
separations.
Taking advantage ofmixedmode interactions can
substantially decreases analysis time.
Controlling polymeric character of an alkyl stationary
phase is critical to achieving shape selectivity of PAH
analytes.
