1pc MD10-100-5m/roll interception molecular weight D semi-permeable film

The United States imported dialysis bag MD10 25 34 44 55 77mm interception molecular weight MW100D semi-permeable film Brand: jielePu JielePuMaterial: regenerated cellulose (RC) membraneName: dry dialysis bagColor: light yellow transparent colorPH stability range: 5.0-9.0Pollutant level: Sulfide <0.3%; Heavy metal <50ppm Characteristics: Resistant to weak acid and alkali, weak polar organic substances, can withstand high temperature, low impurity content.Uses: Separate and purify small molecules in solution from biological macromolecules. Storage condition: the dialysis bag before treatment can be stored in 0-430C, the remaining membrane put back to the bag and sealed well to prevent dry crack. The dialysis bags which are treated and not used for the time being need to be placed into the dialysis bag storage solution and put in 4-37*C.Method I:1, cut the dialysis bag into small sections of appropriate length (10-20cm).2, Boil the dialysis bag in a large volume of 2% (w/v) sodium bicarbonate for 10 minutes.3, Wash the dialysis bag thoroughly with distilled water.4. Boil the bag in 1 mmol/L EDTA (pH=8.0) for 10 minutes.5. After cooling, store at 4°C. It is important to ensure that the bag remains submerged in the solution. From this point on, gloves must be worn when accessing the bag.6. Before use, fill the bag with distilled water so that it is cleaned inside and out. Method two:Experiments that do not require much can be handled in a simple way: boil the bag in boiling water for 5 to 10 min, then wash it with distilled water, and it can be used.Dialysis ProcedureThe following dialysis procedure is a general basic dialysis procedure. Many variables should be considered before dialysis is started. Variables such as dialysis sample solvent, membrane chemical compatibility, membrane MWCO, dialysis solvent, dialysis volume, temperature, etc., all affect the rate of dialysis and, therefore, the dialysis procedure described below may need to be varied appropriately for some applications.1. Add the appropriate volume of dialysate (buffer) to the dialysis device. The volume of dialysate should be 100 times the volume of the sample. (Example: dialyze 10 mL of sample in one liter of dialysate).2. Cut the appropriate length of dialysis tubing. Allow an additional length (approximately 20% of the total sample volume) for headspace.3. Insert the dialysis tubing into the open dialysis clamp and clamp it again at approximately 3-5 mm beyond the dialysis clamp. Do not fold the dialysis bag.4. Load the sample by the open end of the dialysis tubing. Adjust the length of the headspace and clamp the dialysis clamp.5. Place the dialysis sample in the appropriate dialysis buffer.6. Dialyze according to specific application requirements. Typically, overnight dialysis is permitted. During continuous dialysis, at least 3 complete dialysate changes should be performed. Dialysate changes are recommended at 2-4 hours (after dialysis), 6-8 hours and 10-14 hours (morning of day 2). Dialysis should continue for at least 2 hours after the last dialysate change.Note: For high concentrations of contaminants, samples may require longer dialysis times and more frequent dialysate changes.Imported Regenerated Cellulose MembraneThe regenerated cellulose membrane imported from the U.S., light yellow membrane, high precision and purity, very cost-effective, help the experiment go smoothly.Resistant to high temperature and weak acid and alkaliResistant to temperature range of 40C-121*C; resistant to weak acid and alkali solvents, PH stability range: 5.0-9.0. Note: not resistant to pure organic solvents. Packing:1PCWarranty period: 120 daysOn Dec 19, 2024 at 00:02:27 PST, seller added the following information:.dc_tracker_img .dc_tracker_img:last-of-type p:empty+hr hr+span.ebay,hr+*>span.ebay