Using the data from the standard curve done previously, you record the absorbance of your extracted milk protein sample at 0.499 at 540nm. What is the mass of the protein in mg assuming you collected 10mL worth of the protein? Your standard curve should have a line of best fit with the equation y=0.0001x+0.0038.
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Using the data from the standard curve done previously, you record the absorbance of your extracted milk protein sample at 0.499 at 540nm. What is the mass of the protein in mg assuming you collected 10mL worth of the protein? Your standard curve should have a line of best fit with the equation y=0.0001x+0.0038.
A method for calculating an unknown protein sample's concentration is by using a standard curve that is generated from a known protein standards, generally bovine serum albumin (BSA).
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- Using the equation for the best-fit straight line through your data, the average absorbance of your unknown samples U1 and U2, and any dilution factors (DON’T LEAVE OUT THE DILUTION FACTOR), calculate the concentration of protein in the original unknown protein sample. y = 1.6849x + 0.0414R² = 0.9904You obtained the following raw data when setting up a Bradford standard curve: BSA (mg/ml) Absorbancy 595nm 0 0.225 1 0.310 2 0.420 3 0.510 4 0.610 5 0.720 6 0.810 7 0.915 8 0.950 9 0.980 10 0.990 After blanking against a bradford-dH2O sample, the protein concentration of an unknown sample was determined using the same method and an absorbancy of 0.570 was obtained. Set up a standard curve, excluding outliers (experimental and statistical) and determine the protein concentration in the unknown sample in mg / ml (up to 3 significant figures).You obtained the following raw data when setting up a Biuret standard curve: BSA (mg/ml) Absorbancy 540nm 0 0.158 1 0.210 2 0.260 3 0.305 4 0.360 5 0.410 6 0.455 7 0.510 8 0.530 9 0.550 10 0.554 After blanking against a biuret-dH2O sample, the protein concentration of an unknown sample was determined using the same method and an absorbancy of 0.284 was obtained. Set up a standard curve, excluding outliers (experimental and statistical) and determine the protein concentration in the unknown sample in mg / ml (up to 3 significant figures).
- Given the following information, calculate the total activity in the undiluted protein sample. Activity of 1 ml of diluted sample = 0.5 Total volume of sample = 5 ml Dilution factor = 10 25 50.5 250 2.5Calculate protein concentration in unknown samples 1, 2, 3: Absorbance of Unknown 1 = 0.541 Absorbance of Unknown 2 = 0.85 Absorbance of Unknown 3 = 1.02 Standard Curve: Y = 0.0073xIf you had measured the absorbances of your unknown in test tubes that were half the diameter of the ones that you used to make the standard curve, how would the mg of protein in the samples be affected? (Higher, Lower, No Change)
- If a pediatric vitamin contains 1500 units of vitamin A per milliliter of solution, how many units of vitamin A would be administered to a child given 2 drops of a solution from a drpper calibrated to deliver 20 drops per milliar of solution?Given a stock protein solution with a concentration of 6 mg/ml, determine the protein concentration of a solution made by mixing 5 μl of the stock with 5 μl of a buffer.In order to prepare a standard curve, you will do serial dilutions of the standard protein. Assume the protein concentration in tube A is 3 mg/ml and you take 0.5ml and add it to the next tube (tube B) containing 0.5ml of buffer. What is the concentration in tube B?
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