水流动相GPC标样-聚环氧乙烷, 阴离子，窄MWD; Aqueous GPC/SEC StandardssPolyethylene Oxide, Anionic, Narrow MWD Polethylene Oxide; Mp 29300, Mw 27800, Mn 22800 IV 0.439; IV* - Intrinsic VIscosity (dL/g) in 0.05M Sodium Sulfate at 30°C (a = 0.693; K = 0.000365)