Which statements are NOT true regarding chromatography?
I The stationary phase is typically a liquid bonded to the inside surface of a capillary or the surface of solid packed in the column.
II The mobile phase entering the column is the eluate.
III Mobile phase is the solvent (gas or liquid)that moves through the column.
IV Eluent is the process of passing mobile phase though a column.
V Columns are either open tubular or packed.
A)I and V
B)II and IV
C)I,II,and III
D)III and V
E)I,IV,and V

Question

Quizplus · Accepted Answer

II is incorrect because the mobile phase entering the column is not the eluate; it is the phase that carries the analytes. The eluate is what exits the column, containing the separated components. IV is incorrect because eluent is not a process; it is the fluid that enters the column, carrying the sample components through the stationary phase, not the process of passing mobile phase through a column.

Which Statements Are NOT True Regarding Chromatography