FS - Analytical Chemistry - Separation Methods

A liquid (or gel) placed in a tube where the density varies from higher density at the bottom and lower density at the top

• Gradient Tube

• Gel Electrophoresis

• Mass Spectrometer

• STR

Separation by boiling point

• Chromatography

• Solubility

• Distillation

• Magnetic / Electric

Separation based upon how 2 compounds interact with each other

• Distillation

• Chromatography

• STR

• Solubility

A carrier is used to push the component of the mixture across the paper (in chromatography)

• Gradient Tube

• Stationary Phase

• Mobile Phase

• Antibody

Amount of time that it takes a compound to emerge from the end of the column

• Distillation Time

• Retention Time

• Mobile Phase Time

• Stationary Phase Time

In Gas Chromatography, a comparison of areas under each peak gives:

• relative amount of the compound

• number of isomers

• retention time

• velocity of the compound as it was separated (indicates size)

The mobile phase in gas chromatography is

• The Water

• The Paper

• The mixture of substances being separated

• Silica Gel

• The Gas

Which purification method uses differences in boiling points to separate components?

• Gradient Tube

• Magnets

• Electrophoresis

• Distillation

• Chromatography

An instrument is used which measures and analyzes certain properties of a sample by examining how the molecules interact with light. This is an example of:

• Physical Analysis

• Gravimetric Analysis

• Volumetric Analysis

• Spot Test

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-5

When all of an unknown substance is exactly consumed in a titration analysis it has reached the

• Equivalence Point

• Retention Time

• Immunoassay

• Combustion Point