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Perform IEC SP-420N separation with a linear gradient of 20mM sodium phosphate buffer and 0.5M NaCl. pH 7.0, flow rate 1.5mL/min over 10min.
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Eluent :(A); 20mM Sodium phosphate buffer (pH7.0) (B);(A) + 0.5M NaCl (pH7.0) Linear gradient:(A) to (B), 10min Flow rate :1.5mL/min IEC SP-420N