chromatography Hear it!

chromatography Definition

chro·ma·tog·ra·phy (krō′mə tägrə fē)

noun

any of various processes of chemical analysis in which the constituents of a mixture are separated into distinct bands or spots on an adsorbent material

Etymology: chromato- + -graphy

chromatography Usage Examples

Converse of object

  • couple: Further characterisation of samples is carried out using chromatography coupled to mass spectrometry.

Converse of subject

  • purify: The harvested antibody is filtered and stored frozen until the end of a culture run when it is pooled and purified by column chromatography.
  • analyze: Results The food samples were analyzed by static headspace gas chromatography with mass spectrometric detection at CSL Food Science Laboratory, Norwich.

Adjective modifier

  • high-performance: The third sample contained a major hydrated component that could be isolated in pure form by high-performance liquid chromatography.
  • liquid: The spent medium was analyzed for amino acid content by high performance liquid chromatography.
  • inverse: The use of inverse phase gas chromatography to study the glass transition temperature of a powder surface.
  • capillary: Wax content - determined by capillary column gas-liquid chromatography ( GLC ) for detecting the addition of solvent extracted olive pomace oil.
  • thin: Thin layer chromatography can be used to identify drugs, pigments from fibers or ink from documents.

Modifies a noun

  • spectrometry: For GP1, the extract was analyzed directly with gas chromatography mass spectrometry ( GC-MS ).
  • column: Carrier gas Gas used to transport a sample through a chromatography column.
  • mass: For GP1, the extract was analyzed directly with gas chromatography mass spectrometry ( GC-MS ).
  • technique: Plenary: tell students that, in reality, a more sophisticated chromatography technique is used.
  • paper: The hydrolysed mixture is then ' spotted ' onto the pencil base line of the chromatography paper.

Noun used with modifier

  • permeation: The gel permeation chromatography ( GPC ) measurements show that the molecular weight profile is only changed slightly.
  • thin-layer: The thin-layer chromatography indicated a series of degradation products.
  • affinity: Further work is also needed on the affinity chromatography procedure to enable total folic acid to be measured without further HPLC.
  • ion: All samples, with the exception of the diffusion tubes, were analyzed using ion chromatography.
  • gel: ADF can interact with either monomeric or filamentous actin to give a complex which can be isolated by gel filtration chromatography.
  • gas: However, they can be measured in expired air using gas chromatography.

Preposition: with

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