Polyamide-6-film Polyamide film Polyamide film 6
Polyamide film
Polyamide thin film chromatography is a new chromatographic technique developed after 1966. Because of its high sensitivity, high resolution, fast, easy to operate, it has been widely used in the analysis of various compounds. This product is used for the chromatographic separation of flavonoids. It can also analyze the separation of polar and non-polar substances such as phenols, terpenoids, organic acids, alkaloids, terpenoids and glycosides. The adsorption of polar substances by polyamides is Because it can form a hydrogen bond with the object to be separated. The strength of this hydrogen bond determines the amount of adsorption between the separated material and the polyamide film. During chromatography, the layering agent competes with the object to be separated on the surface of the polyamide membrane to form hydrogen bonds. Therefore, by selecting an appropriate layering agent to cause a continuous process of adsorption, desorption, resorption, and desorption of the separated material on the surface of the polyamide membrane, the separated material can be separated. Chromatographic polyamide film coatings have good hydrophilic and lipophilic properties and are therefore capable of separating water soluble materials.
The coating of this product is high-purity, white, strong adhesion, uniform thickness, free of heavy metal ions and other harmful groups causing tailing. The polyamide film is coated on the polyester and coated on the glass. This product is coated on polyester and coated on the polyester. Some developers can not tolerate the high concentration of chloroform. At this time, the user unit can try to reduce the developer. The ratio of chloroform in the example was changed to chloroform:methanol to 6:4. It usually solves some problems and does not affect the separation effect of flavonoids. If it cannot be reduced, it should be changed to a glass-based chromatography polyamide film. In addition, our glass-based chromatography polyamide film is resistant to all developing agents.
The temperature has a great influence on the speed of the exhibition layer, and the exhibition layer is too fast, the separation is not good, the exhibition layer is too slow, and the operation is inconvenient. Therefore, we set the temperature of 20 °C as the standard layer temperature. The user can adjust the speed of the layer by adjusting the temperature of the layer. The adjustment is still not effective and it is unqualified. This product will reduce the separation performance after damp. It should be stored in a dry place. If it is found to be damp, it can be baked at 50 ° C for 1 hour to restore performance.
Polyamide Membrane Chromatography Common Solvent System
Compound Category: Coated solvent
Flavonoids: chloroform: methanol (96:4); chloroform: methanol: butanone (12:2:1); chloroform: methanol: formic acid (60:38:2);
Chloroform: methanol (60:40); chloroform: methanol: pyridine (70:22:8); chloroform:methanol: phenol (64:28:8);
Benzene: methanol: methyl ethyl ketone (90: 6: 4);
Phenols: Acetone: Water (1:1); Benzene: Methanol: HAC (45:8:4); Cyclohexane: HAC (93:7); 10% HAC
Terpenoids: n-hexane: benzene: HAC (4:1:0.5); petroleum ether: benzene: 10% HAC (10:10:5)
Sugar: ethyl acetate: methanol (8:1) n-butanol: acetone: water: HAC (6:2:1:!)
Amino acid derivatives: benzene: HAC (8:2 or 9:1); 50% HAC; formic acid: water (1.5:100);
Ethyl acetate: methanol: HAC (20:1:1); 0.05 M trisodium phosphate: ethanol (3:1)
Dimethylformamide: HAC: Water: Ethanol (5:10:30:20)
Steroids, steroids, steroids: ethane: acetone (4:1); chloroform: acetone (4:1); methanol: water: formic acid (60:35:5);
Ethyl acetate: methanol: water: formic acid (50:20:25:5);
Alkaloid: cyclohexane: ethyl acetate: n-propanol: dimethylamine (30:25:0.9:0.1); water:ethanol: dimethylamine (88:12:0.1)
Flavonoids: methanol: HAC: water (90:5:5); methanol: water (4:1) ethanol: water (1:1); acetone: water (1:1);
Isopropanol: water (3:2); ethyl acetate: ethanol (6:4); chloroform: methanol (7:3); n-butanol: ethanol: water (1:4:5)
Packing
Warranty period: 120 days
