of proteins , glycoproteins and peptides including SEC , RPHPLC , Ion Exchange chromatography .
I-SKILL I-SKILL I-SKILL I-SKILL I-SKILL I-SKILL O B-SKILL O B-SKILL I-SKILL I-SKILL I-SKILL I-SKILL O
IN NNS , NNS CC NNS VBG NNP , NNP , NNP NNP NN .