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- Help me.... Explain the principles of gel permeation chromatography in Polymer, what is the application in Polymer analyticsFor each of the following statements, answer TRUE or FALSE and explain your answer briefly. It is preferred to apply potassium dichromate solution over neutral density filter to check the photometric accuracy of UV-visible spectrophotometer.Identify 5 separation processes that are used in pharmaceutical industry. Discuss how they use each separation process. Limit your discussion to not more than 5 sentences per process. Include references in your paper.
- you've been tasked to compound 30 grams of a 0.5% Zinc oxide ointment. you have a stock preparation of zinc oxide 5% strength to mix with petrolatum to dilute the ordered strength. In what (parts) ratio could this be compounded?Acetophenone is soluble in diethyl ether, isopropanol, and nhexane. Identify and justify the most suitable solvent for UV- Vis characterization?This is the most common industrial process for preparing large-scale production of nanoparticles wherein a liquid or gas is fed into a furnace and the nanoparticles are recovered by air classification. a. sol-gel method b. sputtering c. pyrolysis d. laser ablation
- Explain the reasons for the importance of crystallization step involved in the manufacturing of bulk drugs?What is the simplest CGS unit for "poise"?Which solvent would be the best choice for use as an extraction solvent in a separatory funnel with an aqueous solution of NaHCO3 followed by rotoevaporation? Hint: Consider the ability of the solvent to dissolve a wide range of substances, its miscibility with water, and its ability to evaporate the solvent easily by rotoevaporation. ethylene glycol
- For this statement, answer True or False and explain your answer briefly. Polarity is the only characteristic used in liquid-liquid extraction to isolate a poison from the biological matrix.Which solvent would be the best choice for use as an extraction solvent in a separatory funnel with an aqueous solution of NaHCO3 followed by rotoevaporation? Hint: Consider the ability of the solvent to dissolve a wide range of substances, its miscibility with water, and its ability to evaporate the solvent easily by rotoevaporation. ethanol hexane toluene ethylene glycol methylene chlorideWhich of the following statement is false? a. Component with the strong attraction to the support move more slowly than component with weak attraction. b. Chromatography technique used to separate only colored compounds. c. On TLC, single spot does not mean or guarantee a single substance (compound). d. Iodine vapor and UV- lamp are methods used for visualization uncolored compounds.