analysis of the chromatographic behavior of these neutral ( ethylene glycol , urea ) , positively charged ( tris , guanidine , as the hydrochloride salts ) and negatively charged ( so2-4 , hpo2-4 , f- , cl- , br- , cl3cco-2 , i- , scn- , as the sodium salts , in order of elution ) solutes at ph 7 as a function of sample concentration ( up to 0.6 m ) , supporting electrolyte , and temperature yields four conclusions , based largely on the behavior of the anions .
C0016327
f
C0003075
anions