water molecules or sodium ions?

[Menachem Shoham]

Hello Netters,
Perhaps someone out there has an answer to a tricky question about solvent
peaks. If you have sodium or potassium ions in your crystallization medium,
how do you distinguish between water molecules and sodium/potassium ions?
In other words, how do you assign a solvent peak to either water or a
monovalent cation?
                                       
                                         Menachem Shoham
                                    Case Western Reserve University
                        

                                Menachem Shoham
                                Case Western Reserve University
                                School of Medicine
                                Department of Biochemistry
                                10900 Euclid Ave
                                Cleveland, OH 44106-4935
                                tel. 216-368-4665
                                fax  216-368-4544