Development of an Analytical Method for Perfluorochemicals in Human Plasma and Blood by Liquid Chromatography-Tandem Mass Spectrometry Coupled with Solid-Phase Extraction Using a Column-Switching Technique Publication Attachment: 05-121.pdf Authors: Nakata, Hisao, Nakata, Ayako, Kawaguchi, Migaku, Iwasaki, Yusuke, Ito, Rie, Saito, Koichi, Nakazawa, Hiroyuki Year: 2005