Figure 5From: Fundulus heteroclitus gonadotropins.5: Small scale chromatographic fractionation of pituitary extracts into components with different steroidogenic activities using homologous bioassaysMono-P fractions #I-V (containing Polybuffer) were readjusted with start buffer [1.2 M (NH4)2SO4 in 0.1 M sodium phosphate, pH 6.8]. Each individual Mono-P fraction was rechromatographed on a Phenyl-5-PW column. A linear gradient of decreasing salt concentration was started after the Polybuffer eluted. Shaded areas indicate fractions containing gonadotropic activities (see Table 1).Back to article page