CHROMATOGRAPHY QUIZ

In gas chromatography, the basis for separation of the components of the volatile material is the difference in

molecular weight

conductivity

partition coefficients

molarity

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Ion exchange chromatography is based on the

electrical mobility of ionic species

adsorption chromatography

electrostatic attraction

partition chromatography

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The general expression for the appearance of a solute in an effluent is (where V is the elution volume of a substance , V0 void volume, kD distribution constant and Vi internal water volume)

V = V0 - kDVi

V = V0 + kDVi

V = V0/Vi

V/V0 = kDVi

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In reverse phase chromatography, the stationary phase is made

either non-polar or polar

none of these

non-polar

polar

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A combination of paper chromatography and electrophoresis involves

none of these

both (a) and (b)

electrical mobility of the ionic species

partition chromatography

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Thin layer chromatography is

adsorption chromatography

None of these

electrical mobility of ionic species

partition chromatography

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