Enantioselective separation and determination of single nonylphenol isomers Zhang, Haifeng ; Zuehlke, Sebastian ; Guenther, Klaus ; Spiteller, Michael Abstract Publication: Chemosphere Pub Date: January 2007 DOI: 10.1016/j.chemosphere.2006.08.012 Bibcode: 2007Chmsp..66..594Z