74. According to the Van Deemter equation, which of the following parameters would be independent of solvent velocity.
(A) longitudinal diffusion
(B) mass-transfer
(C) edd^ dlffosion
(D) two of above
(E) all of above
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統計: A(1), B(2), C(2), D(1), E(2) #1121929
統計: A(1), B(2), C(2), D(1), E(2) #1121929