TY - RPRT TI - Fully automated sample handling system for liquid chromatography based on pre-column technology and automated cartridge exchange. AU - M W Nielen AU - A J Valk AU - R W Frei AU - U A Brinkman AU - P Mussche AU - R De Nijs AU - B Ooms AU - W Smink PY - 1987 DO - 10.1016/s0021-9673(01)94205-0 UR - https://pubmed.ncbi.nlm.nih.gov/3597600/ ID - 3597600 ER -