Although it is preferable to use a high organic content diluent for your sample, we have observed excellent peak shapes using entirely aqueous samples in many applications. This application featuring the Cogent Diamond Hydride™ column involved analysis of folic acid in standards and juice samples. A 100% water-based diluent was used and the peak shape was both sharp and symmetrical.

Click HERE for Cogent Diamond Hydride HPLC Column Ordering Information.