计算溶液所需的质量、体积或浓度。
应用
Tris-Borate-EDTA 缓冲液已用于电泳分离从活性污泥中提取的质粒。适用于稀释至使用浓度后的凝胶电泳。TBE电泳液是DNA和RNA聚丙烯酰胺凝胶电泳最常用的缓冲液。TBE用于非变性或变性(7M 尿素)凝胶。 它通常也用于DNA自测序凝胶。 TBE可以用于琼脂糖凝胶,但是不推荐用于回收核酸的制备胶。将TBE储存浓缩溶液稀释到1×TBE电泳缓冲液,生成的缓冲液含有89mM Tris-硼酸和2mM EDTA,pH8.3。 5X或10X储存液也可以加入丙烯酰胺/甲叉双丙烯酰胺储存液,用来制成PAGE胶。 为了达到最大的分辨率,推荐电压小于5V/cm(电极单元间距离)。
适用性
原理
制备说明
用 18 兆欧水制备的溶液采用经生物技术性能认证的 Trizma 碱(产品代码 T6066)、分子生物学试剂硼酸(产品代码 B6768)和 EDTA 二钠盐(产品代码 E5134)制备。
外形
Description
Tris-Borate-EDTA buffer has been used in the electrophoresis of the plasmid extracted from activated sludge.Ready for use in gel electrophoresis after dilution to working concentrations.TBE running buffer is the most commonly used buffer for DNA and RNA polyacrylamide gel electrophoresis.TBE is used with non-denaturing or denaturing (7 M urea) gels. It is also routinely used for DNA automated sequencing gel. TBE can also be used for agarose gels but is not recommended for preparative gels for recovery of nucleic acids.Dilution of the TBE stock concentrates to a 1× TBE running buffer results in a buffer containing 89 mM Tris-borate and 2 mM EDTA, pH 8.3. The 5× or 10× stocks may also be added to an acrylamide/bis-acrylamide stock solution for making the PAGE gel. Applied voltages of less than 5 V/cm (distance between the electrodes of the unit) are recommended for maximum resolution.