TY - RPRT TI - Micro-SPE method for sample introduction in capillary HPLC/MS. AU - A Cappiello AU - A Berloni AU - G Famiglini AU - F Mangani AU - P Palma PY - 2001 DO - 10.1021/ac000859z UR - https://pubmed.ncbi.nlm.nih.gov/11199981/ ID - 11199981 ER -