TY - RPRT TI - Trapping of bead-based reagents within microfluidic systems: on-chip solid-phase extraction and electrochromatography AU - RD Oleschuk AU - LL Shultz-Lockyear AU - Y Ning AU - DJ Harrison PY - 2000 DO - 10.1021/ac990751n UR - https://pubmed.ncbi.nlm.nih.gov/10695146/ ID - 10695146 ER -