Nalysis of Vitamin C content of Soft Fruit Drinks

A manufacturer of a soft fruit drinks has produced a new range of drinks. You are asked to demonstrate which, if any, contain more vitamin c than the previous range of drinks.
You are provided with:
a? Blue dye.
a? A solution containing a known amount of vitamin c.
a? A selection of old products a a lemon, orange and blackcurrant drink.
a? A selection of new products a a lemon, orange and blackcurrant drink.

Vitamin c turns a blue dye clear. The amount of vitamin c in a solution can be worked out by finding out how much must be added to 1cm3 of the blue dye to turn it clear.

For this assignment you will need to plan an experiment but you will not have to carry it out yourself. This means you can suggest procedures which would not be appropriate for you to do yourself e.g. lack of apparatus