Biochem history question

Alycia 1234 at
Sun Mar 25 18:42:46 EST 2001

I'm hoping someone is a biochem history buff. In the discovery of insulin,
J. B. Collip played a large role by extracting and purifying insulin from
fetal bovine pancreas. Initially, Banting extracted insulin simply using a
saline solution. What I cannot find is what solution Collip initially used
to purify insulin?


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