品牌
生产厂家厂商性质
北京市所在地
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面议COD快速测定仪/COD测定仪
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面议全自动凯氏定氮仪 型号:M346289
面议外观 液体
溶解度 易溶于水
pH值 6.0
气味 无
状态 液体
稳定性 稳定 十年或以上(冰箱)
规格:150000U,1100 U/mg (40°C, pH 4.5, 2% sucrose). 1500 U/ml.
成分
名称 比例
蔗糖酶(β-呋喃果)(酵母)1.5%
甘油45%
叠氮钠0.02%
水53%
1。纯度
Chromatographically纯化。具体活动1100单位/毫克的蔗糖(2%瓦特/ 5)的
pH值4.5和40℃
2。杂物
1 -半乳糖苷酶污染小于0.001%。
3。理化性质
pH值远舰4.5
pH值的稳定性3.5 - 8.0
温度60℃舰
温度稳定性“60℃
4。储存条件
这种酶是作为一个提供50%的甘油含牛血清白蛋白(1毫克/毫升)和
*(0.2%,稳定剂和preservative.The酶)应储存
在4 ° C
在酶浓度购入约1,500 U / ml的。
Invertase (ß-Fructofuranosidase) (yeast)
EC 3.2.1.26
From yeast. Chromatographically purified. In 50% glycerol.
Specific activity: 1100 U/mg (40°C, pH 4.5, 2% sucrose). 1500 U/ml.
Contaminants: a-galactosidase < 0.001%.
Stable at 4°C for > 4 years.
Catalogue Number: E-INVRT
Content: 150,000 Units
Appearance liquid
Specific Gravity ~ 1.8
Solubility in Water Readily soluble
pH Value 6.0
Odour None
Form Liquid
Stability Stable in a refrigerator for ten or more years
Ingredients Name CAS Proportion
Invertase (b-Fructofuranosidase)(yeast) 1.5%
Glycerol 45%
Sodium Azide 0.02%
Water 53%
1. PURITY
Chromatographically purified. Specific activity 1100 U/mg on sucrose (2% w/v) at
pH 4.5 and 40°C.
2. CONTAMINANTS
a-Galactosidase contamination is less than 0.001%.
3. PHYSICOCHEMICAL PROPERTIES
pH Optima 4.5
pH Stability 3.5 - 8.0
Temperature Optima 60°C
Temperature Stability < 60°C
4. STORAGE CONDITIONS
The enzyme is supplied as a solution in 50% glycerol containing BSA (1 mg/ml) and
sodium benzoate (0.2 %) as stabiliser and
preservative.The enzyme should be stored
at 4°C.
The concentration of enzyme as supplied is approximay 1,500 U/ml.