gas chromatography

Converse of object

• use: However, they can be measured in expired air using gas chromatography.
• couple: All samples were analyzed by high resolution gas chromatography coupled with high or low resolution mass spectrometry ( GC-MS ) at CSL.
• include: Further analysis methods include gas chromatography coupled with FID, ECD, MS and HPLC employing derivatisation methods.

Converse of subject

• analyze: Results The food samples were analyzed by static headspace gas chromatography with mass spectrometric detection at CSL Food Science Laboratory, Norwich.

Adjective modifier

• inverse: The use of inverse phase gas chromatography to study the glass transition temperature of a powder surface.
• high: All samples were analyzed by high resolution gas chromatography coupled with high or low resolution mass spectrometry ( GC-MS ) at CSL.

Modifies a noun

• mass: For GP1, the extract was analyzed directly with gas chromatography mass spectrometry ( GC-MS ).
• spectrometry: For GP1, the extract was analyzed directly with gas chromatography mass spectrometry ( GC-MS ).
• instrument: We have developed lightweight gas chromatography instruments to measure halocarbons.

Noun used with modifier

• headspace: The method of analysis used was based on a headspace gas chromatography ( GC ) method developed for an earlier project.
• resolution: All samples were analyzed by high resolution gas chromatography coupled with high or low resolution mass spectrometry ( GC-MS ) at CSL.

Preposition: with

• detection: The hydrocarbon composition was determined by gas chromatography with flame ionization detection.