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琼脂糖,西班牙琼脂糖/Biowest Agarose   已停产
详细描述
纯度很高的电泳级西班牙琼脂糖 /Biowest Agarose ,适用于各种蛋白、核酸电泳,在世界享有极高的声望。
规格: 100g 产地: 西班牙Biowest 原装 货号:91622
Regular EEO( 电渗 ) 0.15
Gel Strength (胶强度) (1%) (g/cm2) ≥750
Gelling temperature (凝胶温度) (1%)( ℃ ) 37±1.5
说明: 用于日常核酸分析电泳、蛋白电泳等。
西班牙琼脂糖英文详细介绍:
Description:
Gel Strength (1.0%) (g/cm2) ……………… ≥750
Gelling Range (1.5%) (℃)……………… 36 - 39
Melting Range (℃)……………………… 87 - 89
EEO (-mr)……………………………………≤0.15
Sulfate (%)………………………………… ≤0.15
DNase……………………………None Detected
RNase……………………………None Detected
Protease…………………………None Detected
Introduction:
Routine use agarose is ideal for everyday analysis of nucleic acids by gel electrophoresis or blotting (Northern or Southern) and is also suitable for protein applications such as Ouchterlony and radial immunodiffusion (RID).
Analysis Note
Sulfate content - used as an indicator of purity, since sulfate is the major ionic group present.
Gel strength - the force that must be applied to a gel to cause it to fracture.
Gel point - the temperature at which an aqueous agarose solution forms a gel as it cools. Agarose solutions exhibit hysteresis in the liquid-to-gel transition - that is, their gel point is not the same as their melting temperature.
Electroendosmosis (EEO) - a movement of liquid through the gel. Anionic groups in an agarose gel are affixed to the matrix and cannot move, but dissociable counter cations can migrate toward the cathode in the matrix, giving rise to EEO. Since electrophoretic movement of biopolymers is usually toward the anode, EEO can disrupt separations because of internal convection.
Preparation of Agarose Gels for DNA separations
Weigh out the desired amount of agarose and place in an Erlenmeyer flask with a measured amount of electrophoresis buffer, e.g. for an 0.8% gel, add 0.8 gm of agarose and 100ml of TBE Buffer (1X), to a 200 ml flask. The larger flask insures against the agarose boiling over. Dissolve the agarose in a boiling water bath or in a revolving-plate microwave oven. All the grains of agarose should be dissolved and the solution clear. Cool the solution to 60°C (70°C for concentrations 2% or above) and pour immediately. Allow the gel to set for one-half hour before using. Make sure to use the same electrophoresis buffer in the gel as for the running buffer.
- 目录号:91622
- 品牌:常用名品现货--特别推荐
- 规格:100g
- 目录价:¥265.00
- 市场价格:¥265.00
- 会员价格:¥238.5
- 到货时间:现货,下单后马上发货
- 数量: