Science Buddies: "Ask an Expert"

How can i use dichloroindophenol in Testing for Vitamin C. What procedure do i have to follow, or take in doing so? Can you list any possible websites using this in their procedure if possible.
~Thanks!~

This website has a procedure:
http://www.wisc.edu/foodsci/courses/fs310/lab10.html

This website goes into more depth:
http://chemlab.truman.edu/CHEM120Labs/VitaminC.htm

Thanks, they helped alot!