What is the process and principle behind isoelectric precipitation?
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What is the process and principle behind isoelectric precipitation?
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- What volume of 50 ppm nitrate stock solution would you use to prepare 50 ml of 1ppm, 2 ppm, 3 ppm and 4 ppm nitrate solutions?What are non-ionic detergents?Why is it important to select immiscible solvents when performing liquid-liquid extraction? In general, how can you determine which layer (aqueous or organic) is on top, and which is on the bottom?
- Given a BSA stock solution of 4mg/mL how would you prepare a 5 mL sample with a final concentration of 1 mg/mL?If we wanted to measure the BSA absorbance without the Biuret reagent, which wavelength would we use and why?What is an absorption spectrum? The following graph is the visible absorbance spectrum of an indicatorsolution. How can we conclude about the color of this sample?
