17-0300-25 Ficoll 400、菲可400、聚蔗糖 400_详细资料

产品信息

Ficoll 400
Technical Information

TECHNICAL SPECIFICATIONS
Physical properties of Ficoll™ PM400
Molecular weight
3 × 10⁵ to 5 × 10⁵
Specific rotation
+50° to +65°
Stokes radius
10 nm
Sodium chloride
< 1%
Reactivity and stability
The reactivity and stability of Ficoll™ PM400 are determined by its hydroxyl groups and the glycosidic bonds in the sucrose residues. It is stable in alkaline and neutral solutions. At pH values lower than 3, it is rapidly hydrolyzed, especially at elevated temperatures. In neutral solutions, however, Ficoll™ PM 400 can be sterilized by autoclaving at 110°C for 30 min without degradation. Strong oxidizing and reducing agents should be avoided.
Solubility
Ficoll PM400™ is delivered as a spray-dried powder and is therefore readily soluble in aqueous media when it is added slowly with concomitant stirring. Any lumps formed during this procedure will dissolve fairly quickly. Concentrations up to 50% （w/v） can easily be attained. The relative viscosity （h_r） of Ficoll PM400 solutions at different concentrations is tabulated as follows:
Ficoll™ PM400 （% w/v）
10
20
30
40
50
h_r at 20°C
5
20
60
180
600
Ordering Information（订购信息）：

货号
名称
产地
CAS 号码
规格
报价
特价
17-0300-25
Ficoll 400
GE
NO
25g
380
275
17-0300-10
Ficoll 400
GE
NO
100g
1450
1000

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TECHNICAL SPECIFICATIONS
Physical properties of Ficoll™ PM400
Molecular weight	3 × 10⁵ to 5 × 10⁵
Specific rotation	+50° to +65°
Stokes radius	10 nm
Sodium chloride	< 1%
Reactivity and stability
The reactivity and stability of Ficoll™ PM400 are determined by its hydroxyl groups and the glycosidic bonds in the sucrose residues. It is stable in alkaline and neutral solutions. At pH values lower than 3, it is rapidly hydrolyzed, especially at elevated temperatures. In neutral solutions, however, Ficoll™ PM 400 can be sterilized by autoclaving at 110°C for 30 min without degradation. Strong oxidizing and reducing agents should be avoided.
Solubility
Ficoll PM400™ is delivered as a spray-dried powder and is therefore readily soluble in aqueous media when it is added slowly with concomitant stirring. Any lumps formed during this procedure will dissolve fairly quickly. Concentrations up to 50% （w/v） can easily be attained. The relative viscosity （h_r） of Ficoll PM400 solutions at different concentrations is tabulated as follows:
Ficoll™ PM400 （% w/v）	10	20	30	40	50
h_r at 20°C	5	20	60	180	600