質(zhì)量標(biāo)準(zhǔn): 外觀Appearance 白色粉末
紅外光譜鑒定Infrared spectrometry 和對照品匹配
純度Purity ≥99.0% (HPLC)
CMC (H2O) ~ 9 mM1 (0.28%)
聚合數(shù)量Aggregation Number (H2O)2 ~ 189
dn/dc (H2O)3 0.1562 mL/g
alpha < 2% (HPLC)
pH (0.5% 溶液) 5-8
水溶性Solubility in water at 0-5°C 0.8%
電導(dǎo)系數(shù)Conductance (0.5% 溶液) < 40 μS
熒光fluorescence 345 nm < 10%(0.1% 去垢劑溶液)
吸光度Absorbance(1% 去垢劑溶液):
340 nm < 0.1
280 nm < 0.2
260 nm < 0.25
參考資料:
1. Saito, S. and Tsuchiya, T., Biochem. J. 222,
829-832 (1984).
2. Measurement obtained in collaboration with
Professor Mark Foster (University of Akron) under
an experimental services contract
3. Wenk, M. R. and Seelig, J., Biophys. J. 73,
2565-2574 (1997).