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A correlation between EEQGCMS and EEQyeast. A second order polynomial regression analysis reveals a positive correlation between the estrogenic activity determined by direct biological measurement (EEQyeast) and by chemical analysis (EEQGCMS). EEQGCMS is the calculated overall estrogenicity based on the concentration of individual compounds detected and their relative potencies. EEQyeast, is the measured estrogenicity determined by the yeast bioassay.
