HPLC

The physical separation of mixtures into individual components is..

• chromatography
• opacity 
• latent
• trace evidence 

Two or more substances that are mixed together but not chemically combined is a ___

• compound
• mixture
• keratin
• chromatography

HPLC stands for

• High Performance Layer Chromatography

• High Performance Liquid Chromatography

• Highly Placed Liquid Chromatography

• Hard Performance Liquid Chromatography

The substance in the mixture that has the greatest affinity for the mobile phase will travel

• fastest
• slowest

Which of the following can be used to find the concentration of a substance in HPLC

• R_f value
• R_t value
• peak area
• peak width

In order to compare to chromatograms what must be kept the same?

• stationary  phase
• mobile phase
• temperature
• all of the above

Based on a normal chromatography, the stationary phase is polar.

• TRUE

• FALSE

• Depends on the substance

What is Chromatography used for?

• Separating mixtures of substances into their components

• Identifying the charge of a compound

• Calculating the enthalpy change

• Identifying the Molecular Mass of a substance

chromatography separates the mixture of dyes on the basis of their ----------------------------

• Density

• Solubility

• Gravity

• Boiling Point

High pressure liquid chromatography can be performed only in columns.

• True

• False