Subject: How can we do quantitative tests for determining protein and carbohydrates?

We decided to do the biuret test as well as the benedicts test for a 
project we are currently working on, however our teacher said it was 
almost impossible to make it quantitative. Is that true?
They suggested that we did an experiment with science however we don't 
have a clue. Our group topic is are vegetables really good for you. We 
had to choose a physics question and chemistry question relating to 
it. For physics we are going to measure the radioactivity of the 
vegetables and for chemistry we haven't a clue apart from the tests to 
see what the vegetables are made out of. They say it is not original 
enough and we have to come up with something better. Any ideas??? We 
need it as soon as possible!! (Before 15th June 1998)
Thankyou, 
Students in need.

Re: How can we do quantitative tests for determining protein and carbohydrates?