Example 17
SE-HPLC was performed using an AKTA Purifier “900-series” (GE Healthcare). The system was equipped with a Superose 12 GL column (GE Healthcare, TC10/30) which was run at a constant flow rate of 0.3 mL per minute at room temperature. As running buffer 20 mM Tris, 100 mM sodium acetate, 500 mM sodium chloride, pH 7.4 was used. The sample was centrifuged (Centrifuge 5415C, Eppendorf, Vienna, Austria) for 5 min at 10,000 rpm and 100 μL were applied automatically by an autosampler. The absorbance of the column effluent was measured continuously at 280 nm.