COMPARISON OF CCS(N_2) MEASUREMENTS OBTAINED FROM TWO DIFFERENT T-WAVE ION MOBILITY SYSTEMS WITH DIRECT MEASUREMENTS USING A DRIFT TUBE ION MOBILITY SYSTEM

摘要

Excellent correlation has been observed between in house and literature drift tube CCS(N_2) values. It has been demonstrated that the CCS(N_2) values determined by calibrated T-wave systems (of either geometry) are equivalent to those obtained by a linear field drift tube IM systems. The term 'deviation' should be used to describe observed variation between experimentally measured CCS(N_2) values not 'error' or 'accuracy' as these terms imply that a given experimentally observed value is correct and free from measurement error with respect to another experimentally observed value.