The Cogent Diamond Hydride™ HPLC columns using aqueous normal phase (ANP) chromatography are very good choices for LCMS or HPLC analysis of most peptides. We have published an article on peptides demonstrating the ability of the column to retain a very broad range of peptides. This paper uses experimental, capillary ID columns but it works just as well with standard LCMS diameter columns.
We are doing more work in our lab and others as well have tested out the basic findings in this article. We will have some additional papers coming out soon.