·  别名 : 葡聚糖 T-40

·  英文名称 : Dextran T-40

·  CAS : 9004-54-0

·  分子式 : C6nH10nO5n

·  分子量 : 40000

·  储存条件 : RT

·  外观（性状） : 白色结晶性粉末

·  单位 : 瓶

·  比重 : 1.047

·  敏感性 : 易吸潮

用于科研实验研究。

葡聚糖T-40平均分子量为4万，白色结晶性粉末，易吸潮，需密封保存。

葡聚糖： dextran
高分子量葡萄糖聚合物。从发酵的甜菜中获得
Dextran Fractions：水解后的
Dextran  10（T10）：分子量为10，000
Dextran溶液可以高压灭菌或者过滤除菌，但是辐射可能会引起葡聚糖的降解
高压不会改变其中分子量的分布。
Dextran-40 ： 10%Dextran-40比血浆渗透压略高，在生理盐水中短期用于术后血浆替代品。
Dextran Blue 2000：一般用来检测过滤柱装填是否合格。（带色：细胞色素C，血红蛋白）
Dextran Sulfate 硫酸葡聚糖 ：MW 500,000  沉淀脂蛋白，10%促进dna杂交
应用：
1、干燥稳定剂——冻干和真空干燥过程中是酶、微生物、细胞等的稳定剂
2、灌注溶液——心脏手术中可代替捐赠者的血浆灌注到心脏中（分子量大，不透膜，胶体渗透压）
3、眼镜方面——制作人工泪液、眼药水

4、其他应用——

·  英文名称 : Dextran T-70

·  CAS : 9004-54-0

·  分子式 : C6nH10nO5n

·  分子量 : 70000

·  储存条件 : RT

·  外观（性状） : 白色结晶或粉末

·  单位 : 瓶

·  比重 : 1.047

·  敏感性 : 易吸潮

科研研究用试剂。

葡聚糖T-70平均分子量为7万，为白色结晶性粉末状，易吸潮，需密封保存。

葡聚糖： dextran
高分子量葡萄糖聚合物。从发酵的甜菜中获得
Dextran Fractions：水解后的
Dextran  10（T10）：分子量为10，000
Dextran溶液可以高压灭菌或者过滤除菌，但是辐射可能会引起葡聚糖的降解
高压不会改变其中分子量的分布。
Dextran-40 ： 10%Dextran-40比血浆渗透压略高，在生理盐水中短期用于术后血浆替代品。
Dextran Blue 2000：一般用来检测过滤柱装填是否合格。（带色：细胞色素C，血红蛋白）
Dextran Sulfate 硫酸葡聚糖 ：MW 500,000  沉淀脂蛋白，10%促进dna杂交
应用：
1、干燥稳定剂——冻干和真空干燥过程中是酶、微生物、细胞等的稳定剂
2、灌注溶液——心脏手术中可代替捐赠者的血浆灌注到心脏中（分子量大，不透膜，胶体渗透压）
3、眼镜方面——制作人工泪液、眼药水

4、其他应用——

·  别名 : 蓝色葡聚糖 2000

·  英文名称 : Dextran Blue 2000

·  CAS : 87915-38-6

·  分子量 : 平均分子量2000,000

·  储存条件 : RT

·  单位 : 瓶

蓝色葡聚糖2000是用于检测过滤柱装填是否合格。

蓝色葡聚糖 2000 Dextran Blue 2000

Product Description :

The most common use for Blue Dextran is in the determination of the void volume in gel filtration chromatography columns. It is typically used at 1 mg/ml to 2 mg/ml in a buffer such as 50 mM Tris-HCl, pH 7.5 containing 100 mM KCl. The volume of the Blue Dextran sample should be 1% to no more than 3% of the column’s bed volume. The shape of the Blue Dextran band as it elutes through the column can also be used to assess the column packing and resolution.

Blue Dextran has also been used as a spectrophotometric substrate for dextranase. Dextranase activity is measured by the increase in absorbance at 610 nm.

The affinity of the Reactive Blue 2 Dye in Blue dextran for certain proteins has been exploited in protein purification methods. When bound to a protein the Blue Dextran-protein complex will be eluted in the void volume of a sephadex gel filtration column. This allows the bound protein to be easily separated from other proteins of similar molecular weight. The binding of blue dextrans to proteins is dependent on pH and ionic strength.

Storage/Stability :

This product is given a shelf-life of five years from the date of manufacture. The solubility of Blue Dextran has been tested at 50 mg/ml in water. Dextran can be hydrolyzed by strong acids at high temperatures. The terminal reducing end group of dextran can be oxidized in alkaline solutions.Solutions should be prepared fresh when ever possible. Dextran is susceptible to microbial degradation. Solutions should be stored refrigerated.

Precautions and Disclaimer :

For Laboratory Use Only. Not for drug, household or other uses.

·  别名 : 蓝色葡聚糖 2000

·  英文名称 : Dextran Blue 2000

·  CAS : 87915-38-6

·  分子量 : 平均分子量2000,000

·  储存条件 : RT

·  单位 : 瓶

蓝色葡聚糖2000是用于检测过滤柱装填是否合格。

蓝色葡聚糖 2000 Dextran Blue 2000

Product Description :

The most common use for Blue Dextran is in the determination of the void volume in gel filtration chromatography columns. It is typically used at 1 mg/ml to 2 mg/ml in a buffer such as 50 mM Tris-HCl, pH 7.5 containing 100 mM KCl. The volume of the Blue Dextran sample should be 1% to no more than 3% of the column’s bed volume. The shape of the Blue Dextran band as it elutes through the column can also be used to assess the column packing and resolution.

Blue Dextran has also been used as a spectrophotometric substrate for dextranase. Dextranase activity is measured by the increase in absorbance at 610 nm.

The affinity of the Reactive Blue 2 Dye in Blue dextran for certain proteins has been exploited in protein purification methods. When bound to a protein the Blue Dextran-protein complex will be eluted in the void volume of a sephadex gel filtration column. This allows the bound protein to be easily separated from other proteins of similar molecular weight. The binding of blue dextrans to proteins is dependent on pH and ionic strength.

Storage/Stability :

This product is given a shelf-life of five years from the date of manufacture. The solubility of Blue Dextran has been tested at 50 mg/ml in water. Dextran can be hydrolyzed by strong acids at high temperatures. The terminal reducing end group of dextran can be oxidized in alkaline solutions.Solutions should be prepared fresh when ever possible. Dextran is susceptible to microbial degradation. Solutions should be stored refrigerated.

Precautions and Disclaimer :

For Laboratory Use Only. Not for drug, household or other uses.