Chromatographic Separation Techniques Quiz

Who used chromatography to separate plant pigments in 1906?

• B. R. L M, Synge

• C. Tswett

• A. A. J P, Martin

• D. Taghrid Alomar

What is the name of the method chosen by Tswett for chromatography?

• D. Colorful Separation

• A. Chroma

• B. Graphein

• C. Chromatography

Who was awarded the 1952 Nobel Prize in Chemistry for their discoveries in the field of chromatography?

• A. A. J P, Martin

• D. Taghrid Alomar

• B. R. L M, Synge

• C. Tswett

What is the mobile phase in chromatography?

• A. The layer or coating on the supporting medium

• B. The part of the chromatography system that is fixed in place

• C. The solvent that flows through the supporting medium

• D. The time taken for a solute to pass through the system

What is the stationary phase in chromatography?

• D. The time taken for a solute to pass through the system

• C. The solvent that flows through the supporting medium

• B. The part of the chromatography system that is fixed in place

• A. The layer or coating on the supporting medium

What is the retention time of a solute in chromatography?

• D. The time taken for a solute to interact with the stationary phase

• C. The time taken for a solute to emerge from the column

• B. The time taken for a solute to pass through the column

• A. The time taken for a solute to pass through the system

What is the retention factor, k, for a solute in chromatography?

• C. The ratio of the distribution constant of the more strongly retained solute to the less strongly retained solute

• D. The equilibrium constant for the distribution of a solute between the mobile and stationary phases

• B. The amount of time a solute spends in the mobile phase

• A. The amount of time a solute spends in the stationary phase

What is the selectivity factor, α, for two solutes in chromatography?

• C. The time taken for a solute to pass through the system

• A. The ratio of the distribution constant of the more strongly retained solute to the less strongly retained solute

• B. The amount of time a solute spends in the stationary phase

• D. The equilibrium constant for the distribution of a solute between the mobile and stationary phases

What is the distribution constant, Kc, for a solute in chromatography?

• D. The equilibrium constant for the distribution of a solute between the mobile and stationary phases

• B. The amount of time a solute spends in the mobile phase

• C. The ratio of the distribution constant of the more strongly retained solute to the less strongly retained solute

• A. The amount of time a solute spends in the stationary phase

What is the elution time in chromatography?

• B. The time taken for a solute to pass through the column

• A. The time taken for a solute to pass through the system

• D. The time taken for a solute to emerge from the column

• C. The motion of the mobile phase through the stationary phase