SEARCH Articles Figures Tables Coherent population trapping , quantum system Continuously regeneration trap filter system Coupling of Purge and Trap with GC-MS Systems Entropic trap array systems Hybrid Systems Involving Ion Traps Ion-trap system Migration/trapping systems Purge-and-trap system Pyrolysis - liquid trapping system Ring systems anion trapping Systems with nucleophilic trapping, intramolecular Trap system Trapped materials trapping systems