水流动相GPC标样-聚环氧乙烷, 阴离子，宽MWD; Aqueous GPC/SEC StandardssPolyethylene Oxide, Anionic, Broad MWD Polyethylene Oxide; Mw 475500, Mn 180600, IV 2.927 ; IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Sulfate at 30°C (a = 0.693; K = 0.000365)