Question: I need the answer as soon as possible A liquid/liquid extraction is performed to separate the following drug from a urine sample: Ibuprofen. The drug

I need the answer as soon as possible

A liquid/liquid extraction is performed to separate the following drug from a urine sample: Ibuprofen. The drug has a pKa of 4.43+0.03 and an n-octanol/water partition coefficient of 11.7 at pH 7.4. 1. Assume you have a 20nM concentration of the drug in urine. You perform a liquid/liquid extraction of 20mL of urine with 10 mL of octanol at pH 7.4. What is your percent recovery? 2. Would your recovery be higher or lower at pH 2.0? 3. Explain what steps you would use to extract the drug by solid phase extraction. 7:55 PM

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