In the Thin Layer Chromatography Procedure for Drug Screening,the Retention

question 11

Multiple Choice

In the thin layer chromatography procedure for drug screening,the retention factor (R_f) value for a compound is given by the:

• A) ratio of distance moved by the unknown solute to distance moved by the solvent in the mobile phase.
• B) rate of movement of the mobile phase through the adsorbent compared with standards and controls.
• C) measurement in centimeters of the distance the solute moved in the mobile phase from the point of application.
• D) distance moved by the mobile phase front from the point of application compared with a control.

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