Thread: A Couple of Questions: Isoelectric Point and Extraction

I currently have a project. It's a combination among some fields. Because I don't know much about Chemistry and know only something about Biochemistry, I think I ask these here.

1. Take alanine for example. It has an isoelectric point of 6. Let's do in in a solution which has a pH of 10 and let's add concentrated sulfuric acid into the solution. Would I get my alanine back when the pH reaches 6 and could I separate it by evaporating the liquid?
   
2. I have a solution of phenylalanine and phenylalanine amide in water. If I separate them through extraction, would amide still be in water which results from the extraction?

Thanks much. [/list]