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COVID-19 Notice: The Chromatography Center is following a modified COVID-19 Standard Operating Procedure. Users must read the document prior to making an appointment to discuss or submit samples.

Updated June 15, 2020

Chromatography is a method for separation of components in a mixture, based on differences in attraction (retention) of these components for a mobile phase (a phase that flows) and stationary phase (a phase that is immobile). In gas chromatography (GC), the mobile phase is a gas (called the carrier gas; often helium) and the stationary phase is a solid or high boiling point liquid. In high pressure liquid chromatography (HPLC), the mobile phase is a liquid and the stationary phase is a solid.


  • Agilent LC/DAD
  • Agilent LC/FLD
  • Agilent GC/FID   
  • Agilent GC/MSD    
  • Agilent LC/DAD/ELSD 


Ordering Analysis

Sample submission is by appointment only. Users should send email to to make appointments. After the appointment is confirmed users should deposit samples in the Sample Box located behind the lab 1001. For further information, please refer to the COVID-19 Standard Operating Procedure document here

Service Center Information

1001 Hahn Hall South

Service Hours
8:30am - 4:30pm

Mehdi Ashraf-Khorassani,

Service Rates

Internal: $116.00/4 hour block
External: $186.00/4 hour block

Internal: $126.00/4 hour block
External: $202.00/4 hour block

Method Development
Internal: $126.00/hour
External: $204.00/hour

Shipping Address

Department of Chemistry
Hahn Hall South Rm 24, Virginia Tech
800 West Campus Drive
Blacksburg, VA 24061