Biological Validation of a Sample Preparation Method for ER-CALUX Bioanalysis of Estrogenic Activity in Sediment Using Mixtures of Xeno-Estrogens

C O R I N E J . H O U T M A N , † Y O N I K . V A N H O U T E N , † P I M E . G . L E O N A R D S , ‡ A B R A H A M B R O U W E R , † M A R J A H . L A M O R E E , † A N D J U L I E T T E L E G L E R * , † Institute for Environmental Studies, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1087, 1081 HV Amsterdam, The Netherlands, and Netherlands Institute for Fisheries Research, Haringkade 3, 1970 AB Ymuiden, The Netherlands