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熔点:184-186℃质量标准 项目分析纯
(AR)
纯度Purity≥99.0% (HPLC)
CMC (H2O) ~ 8 mM1 (0.5%)
聚合数量Aggregation Number (H2O)2 ~ 11
鉴别试验Identification合格
pH (1% 溶液)5-8
水溶性试验Solubility in water 0.5M (31.5%)
电导系数Conductance (0.5M溶液)< 100 µS
荧光fluorescence (0.1% 去垢剂溶液):345 nm < 10%
吸光度Absorbance (1% 去垢剂溶液):
340 nm< 0.02
280 nm< 0.04
260 nm< 0.06
项目分子生物学级
(Molecular Biology)
吸光度Absorbance 260nm (1%, Water) ≤0.05
电导系数Conductivity (0.5M, Water) ≤100µS
DNA酶DNase(P/F)无
水分Moisture (KF)≤7.5%
pH (1%, Water) 25°C 5.0-9.0
蛋白酶Protease 无
灼烧残渣Residue on Ignition≤0.1 %
RNA酶RNase 无
水溶性试验Solubility (0.5M, Water) 合格
参考资料:
1. Hjelmeland, L. M., Nebert, D. W. and Osborne, Jr., J. C., Anal. Biochem. 130, 72-82 (1983).
2. Cladera, J., Rigaud, J., Villaverde, J. and Dunach, M., Eur. J. Biochem. 243, 798-804 (1997).贮存 RT 用途 非变性的zwitterionic 去垢剂,等同于CHAPS, 虽然它带有极性更强的头部基团。常用于溶解细胞膜内表面蛋白。