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水流动相GPC标样-羟乙基淀粉, 高Mw,支链; Aqueous GPC/SEC StandardssHydroxyethyl Starch, High Mw, Branched, Polysaccharides; Mp 244500, Mw 260500, Mn 140000 IV 0.221; IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Nitrate at 30°C (a = 0.289; K = 0.00637)
甲醇中速灭威
PUNYW25993340 Ethylene glycol distearate
2,3’,4,4’,5’,6-六氯联苯溶液,100ppm
Propane in Air (Nominal 100 μmol/mol)
Ytterbium Oxide (Yb2O3) 99.99%
氟噻草胺
35339, Calcium ammonium nitrate fertiliz er (composition) 标准品
3-二乙氨基丙腈
CNET acetone solution, 10μg/ml (as acetone) in acetonitorile
甲醇中五氯酚溶液标准物质