TY - RPRT TI - Pseudolinear gradient ultrahigh-pressure liquid chromatography using an injection valve assembly. AU - Yanqiao Xiang AU - Yansheng Liu AU - Stanley D Stearns AU - Alex Plistil AU - Martin P Brisbin AU - Milton L Lee PY - 2006 DO - 10.1021/ac058024h UR - https://pubmed.ncbi.nlm.nih.gov/16448061/ ID - 16448061 ER -