Sephadex G 50 is a gel filtration medium. Sephadex G 50 can be used in gel permeation chromatography for fractionation of the glycopeptide mixture[1][2].
[1]. Galpin IJ, et, al. Gel filtration of protected peptides on sephadex G-50 in hexamethylphosphoramide containing 5% water. J Chromatogr. 1975 Mar 19;106(1):125-9.
[2]. Meezan E, et, al. Comparative studies on the carbohydrate-containing membrane components of normal and virus-transformed mouse fibroblasts. II. Separation of glycoproteins and glycopeptides by sephadex chromatography. Biochemistry. 1969 Jun;8(6):2518-24.