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Chromatography of PPS isolated from Elmiron capsules (closed circles) and PPS recovered from urine of rabbit intravenously injected with PPS (open circles) on a column of Sephadex G-50. The column was eluted with 0.1 N pyridine acetate, one mL fractions collected dried and analyzed for PPS by ELISA. The elution profiles are superimposed using peak elution of glucose as reference. Vo indicates the exclusion volume of the column.
