Which HPLC to use for protein/peptide separation?

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dmm520
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Which HPLC to use for protein/peptide separation?

I read that reverse-phase HPLC works best for separation of proteins/peptides; I am wondering why this is so (as opposed to normal phase) and if NP HPLC can work just as well?
Thanks :)

Omai
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Here are a couple of websites

Here are a couple of websites detailing the difference between normal and reverse phase.
www.chemistry.adelaide.edu.au/external/soc-rel/content/expts/hplcexpt.htm
www.ncbi.nlm.nih.gov/pubmed/10704744
answers.yahoo.com/question/index
Hope this helps.
Omai