00510nam a2200181Ia 450000500170000000800410001702000170005803500090007504100080008408200120009210000180010424500240012225000080014626000400015430000080019450500930020265000330029520260808125307.0260808s9999||||xx |||||||||||||| ||und||  a58-6078(LOC)  a1165  aENG  a547.914  aKunin, Robert 0aIon exchange resins  a2nd  aNew YorkbJohn Wiely and Sonsc1958  a466  aIon exchange, Resins, Analytical chemistry, Separation techniques, Chemical purification  aChemistrybOrganic chemistry