Influence of dead volume on the peak broadening in capillary column switching liquid chromatography and the hole of restricted access media columns to keep narrow peaks after the injection of large volumes of plasma - Santos Neto, Alvaro Jose dos; Sjoberg, Per; Markides,Karin E; Lanças, Fernando Mauro (Simpósio Brasileiro de Cromatografia e Técnicas Relacionadas - SIMCRO, 2006)