TY - RPRT TI - An improved thin-layer chromatography/mass spectrometry coupling using a surface sampling probe electrospray ion trap system. AU - Michael J Ford AU - Gary J Van Berkel PY - 2004 DO - 10.1002/rcm.1486 UR - https://pubmed.ncbi.nlm.nih.gov/15174184/ ID - 15174184 ER -