货品编号: sigma.P9416-100ML 品牌: sigma 品名: tween20 规格: 100ml
产品描述:
Application 非离子洗涤剂 TWEEN 20 is a nonionic detergent widely used in biochemical applications. It has been used as an emulsifying agent for
the preparation of stable oil-in-water emulsions. TWEEN 20 has been used in pre-extraction of membranes to remove peripheral
proteins (used at 2% for extraction of membrane-bound proteins). TWEEN 20 has been used as a blocking agent for membrane based immunoassays at a typical concentration of 0.05%. TWEEN
20 can be used for lysing mammalian cells at a concentration of 0.005 to 0.5%.
Caution TWEEN 20 may not be stable to autoclaving, particularly with metal cations in buffer solutions. Autoclaving is not recommended
without testing for changes in properties. TWEEN 20 is heat sensitive and will darken when exposed to elevated temperatures.
Polysorbates have been reported to be incompatible with alkalis, heavy metal salts, phenols, and tannic acid. They may also reduce
the activity of many preservatives. Aqueous solutions of polysorbates undergo autoxidation during storage, with changes being
catalyzed by light, increased temperature, and copper sulfate.
包装 50, 100 mL in poly bottle
Preparation Note TWEEN 20 is miscible in water (100mg/mL), yielding a clear, yellow solution. It is also miscible with alcohol, dioxane, and ethyl
acetate. TWEEN 20 is insoluble in liquid paraffin and fixed oils.
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