TY - RPRT TI - Multidimensional on-line solid-phase extraction (SPE) using restricted access materials (RAM) in combination with molecular imprinted polymers (MIP). AU - K S Boos AU - C T Fleischer PY - 2001 DO - 10.1007/s002160100831 UR - https://pubmed.ncbi.nlm.nih.gov/11605750/ ID - 11605750 ER -