A 2 ml volume of eyedrops containing the local anaesthetic proxymetacaine.
June 7th, 2024
A 2 ml volume of eyedrops containing the local anaesthetic proxymetacaine. HCl is diluted to 100 ml and then 5 ml of the dilution is diluted to 200 ml. The diluted sample was measured by UV spectrophotometry and was found to contain 0.512 mg/100 ml of the drug. Calculate the %w/v of the drug in the eyedrops.