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- How would you prepare a solution with a 1:500 dilution of your antibody in a 4mL volume of blocking buffer?
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- If you have to prepare 4 nM solution of human IgG ( immunoglobuline) which has molecular mass of 150 kDa. How many times do you need to dilute you stock solution of hIgG ( 1 mg/mL) please solveUsing ultrafiltration, you concentrate a solution of Protein X as follows: Initial volume protein X = 300 mL Initial concentration protein X = 12 mg/mL Final volume protein X = 15 mL What's the final concentration of protein X in mg/mL?A vial of Doxorubicin reads 0•5g per vial. Instructions say to reconstitute each 12mg with 2•5ml of NS. How many ml of NS will be needed to reconstitute the vial of the recommended concentration? please show working
- 4 mL of 10% TCA solution was added to 1 mL of serum and after mixing, it was waited for two minutes and filtered through non-phosphorus filter paper. 1 mL of the filtrate was taken and 13 mL of distilled water, 4 mL of sulfomolybdic acid and 2 mL of dilute SnCl2 solution were added and mixed, and after waiting for 15 minutes, the absorbances of the obtained solutions against pure water at 520 nm were read. If the function of the calibration graph obtained with 0.5-2.5 mg/mL standard phosphorus solutions is y= 0.245x + 0.107 and the absorbance value of the serum sample is 0.109, what is the amount of phosphorus in the sample?After blood collection, the red cells are separated from the serum to be used for the preparation of the stock solution. How is it done? For the serial dilution, your stock solution must have a concentration of 3.5 mg/mL. How much diluent must be added to the 5.3 mg/mL red cell to prepare the stock solution? Show pertinent solution/s. What is the appropriate diluent used for the preparation of the red cell suspension?The SDS-PAGE protocol requires 0.5L of running buffer for the gel apparatus. The stock running buffer comes as a 20x concentrate. How should you prepare your running buffer? 50ml 20x stock + 450ml deionized water 450ml 20x stock + 50ml deionized water O 250ml 20x stock + 250ml deionized water 25ml 20x stock + 500ml deionized water 25ml 20x stock + 475ml deionized water 2ml 20x stock + 500ml deionized water O 100ml 20x stock + 400ml deionized water
- A pharmacist prepares 80 mL of an isotonic solution of 1.1 %w/v Lidocaine HCl (E-value 0.2). To prepare the solution, he dissolves Lidocaine HCl in purified water to make an isotonic solution. Then he dilutes the Lidocaine HCl solution with 0.9%w/v sterile sodium chloride to complete the formulation. How many milliliters of purified water is needed to make the formulation by this method?Given this, if you used 6g of vitamin Z powder to make 20 ml of solution, what is the % concentration of this solution? (I gave the image since I don't know if that info is needed to solve this question.)It also gives a follow-up, if you can help here too: You work in a lab as a summer student. One of your tasks is to make sure that there is enough cell culture medium containing antibiotics to grow bacteria. One day you realize that there is only 5 ml of 10% Antibiotic stock solution in the freezer. You decide to use it all to prepare the working culture medium with 0.01% antibiotic. In the lab there is plenty of growth medium without antibiotics. (Note: dilution in medium is like dilution in water). You remember the equation to make dilutions of stock solutions. You usually use this formula to calculate the required volume of a stock solution, but you realize it can apply here as well, even though the unknown is the final volume. So, you make that dilution. Given that each bacterial…How will you make a series of two-fold dilutions of a protein solution to give 5 different concentrations? The initial concentration of the protein solution is 70ng/μl and the final volume needed (for an experiment) is 10 µl for each dilution.
- What is the order of elution of proteins on a gel-filtration column? Why is this so? What are two ways that a compound can be eluted from an affinity column? What could be the advantages or disadvantages of each?Discuss in chemical detail the mechanism of action (how it works) of IMAC. Compare and contrast gel filtration chromotography with IMAC. Discuss the pros and cons for each technique. Why would a scientist prefer one technique over another? In what situations would one technique be more viable than the other?Gel-filtration chromatography separates molecules according to their size . Smaller molecules diffuse faster in solution than larger ones, yet smaller molecules migrate more slowly through a gel- filtration column than larger ones. explain this paradox. What should happen at very rapid flow rates?