Criminy it has been thirty plus years since I had analytical chemistry. If you had asked me this question thirty years ago I would have a better answer but today all I can say is, did you look at wikipedia?
http://en.wikipedia.org/wiki/Alpha_and_beta_carbon
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The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well. anonymous
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