TY - RPRT TI - Solid-phase microextraction combined with surface-enhanced laser desorption/ionization introduction for ion mobility spectrometry and mass spectrometry using polypyrrole coatings. AU - Yan Wang AU - Markus Walles AU - Bruce Thomson AU - Sabatino Nacson AU - Janusz Pawliszyn PY - 2004 DO - 10.1002/rcm.1295 UR - https://pubmed.ncbi.nlm.nih.gov/14745764/ ID - 14745764 ER -