Glossary Definitions

Sections
Methods
Proficiency testing

Glossary of terms and definitions

Methods

FTIR - Fourier Transform Infrared Spectroscopy #: FTIR measures the absorption caused by infrared active molecules. This technique involves generation of a light beam over a range of wavelengths in the near-IR portion of the spectrum. The beam passes through a parcel of atmosphere in which chemical species absorb IR radiation at characteristic wavelengths. The beam is reflected directly back on itself to the receiver/transmitter. The received spectrum is compared to a library spectrum for each chemical compound of interest so that the compounds present can be identified and qualified. Data analysis is conducted using a PC and a software package. www.aboutremediation.com
HPLC - High Performance Liquid Chromatography #: A family of analytical chemistry techniques for the separation of mixtures. It involves passing the sample, a mixture which contains the analyte, in the "mobile phase", often in a stream of solvent, through the "stationary phase." The stationary phase retards the passage of the components of the sample. When components pass through the system at different rates they become separated in time, like runners in a marathon. en.wikipedia.org

PT - Proficiency Testing #: The aim of Proficiency Testing - also known as Inter-Laboratory Comparison Programmes, ILCP, or Proficiency Schemes - is to provide laboratories with objective assessments of the accuracy and reliability of their test results. Proficiency Testing also provides the opportunity for laboratories to benchmark their performance within a pooled industry group, nationally or internationally. www.labchek.info