Three organic amines ( trimethylamines (ch3)2NH+ pka=9,8, dimethylamine (ch3)2NH2+ pka=10.78, monomethylamine (ch3)2Nh2+ pka=10.64 and one inorganic cation (NH4+) aka= 9.24 was achieved using a ion-exchange column containing sulfonate (SO3-) group attached to polystyrene divinylbenzene backbone. What is the best elution from least to most retained of these four catonic compounds on this stationary using a mobile phase ph of 10.2?
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Three organic amines ( trimethylamines (ch3)2NH+ pka=9,8, dimethylamine (ch3)2NH2+ pka=10.78, monomethylamine (ch3)2Nh2+ pka=10.64 and one inorganic...