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词汇 fractionate
释义

Definition of fractionate in English:

fractionate

verb ˈfrakʃ(ə)neɪtˈfrækʃəˌneɪt
[with object]Chemistry
  • 1Divide into fractions or components.

    〈主技〉把…分成几部分

    samples were fractionated by electrophoresis
    Example sentencesExamples
    • Two sets of samples were fractionated on 1.0% agarose gels and transferred to nylon membranes.
    • The blood samples were fractionated and stored at - 80° C.
    • This is an equipment which fractionates proteins according to their isoelectric point.
    • Our fractograms show colloid size distributions with major peaks centered at 50 to 60 nm for samples that were size fractionated immediately following the preconcentration step.
    • Sap collection from one same leaf was fractionated into several samples of 15-80 mm volume that were immediately stored at - 80°C for subsequent analyses.
    Synonyms
    split, cut up, cleave, carve up, slice up, chop up, split up
    1. 1.1 Separate (a mixture) by fractional distillation.
      分馏;分级;用分馏法取得
      the products were fractionated with boiling acetone in a Soxhlet apparatus
      Example sentencesExamples
      • The resulting products were fractionated on an agarose gel.
      • In this experiment, mitochondrial proteins were fractionated using a long gel, which allowed the separation of all major mitochondrial proteins.
      • Cell debris was removed by centrifugation, and the supernatant was fractionated by ammonium sulfate precipitation.
      • The extract is then carefully fractionated by chromatographic separation methods.
      • The obtained extracts were fractionated by acetone precipitation.
      Synonyms
      purify, refine, filter, treat, process

Derivatives

  • fractionation

  • noun frakʃ(ə)ˈneɪʃ(ə)nˌfrækʃəˈneɪʃ(ə)n
    Chemistry
    • Minimal fractionation accompanies the precipitation of pyrite from dissolved sulphide.
      Example sentencesExamples
      • Conservative analysis of our systematic fractionation of yeast cytosolic and nuclear extracts resolved 12 chromatographically separable activities.
      • What is emerging in the place of the old multilateral approach, it appears, is a multiple fractionation of the global trading system.
      • This separation creates significant fractionation during the redistribution of the chemical elements between the two liquids.
      • The fractionation, separation of active components and clarification of their mechanism of action are currently under investigation.

Definition of fractionate in US English:

fractionate

verbˈfrakSHəˌnātˈfrækʃəˌneɪt
[with object]Chemistry
  • 1Divide into fractions or components.

    〈主技〉把…分成几部分

    samples were fractionated by electrophoresis
    Example sentencesExamples
    • The blood samples were fractionated and stored at - 80° C.
    • Two sets of samples were fractionated on 1.0% agarose gels and transferred to nylon membranes.
    • Sap collection from one same leaf was fractionated into several samples of 15-80 mm volume that were immediately stored at - 80°C for subsequent analyses.
    • Our fractograms show colloid size distributions with major peaks centered at 50 to 60 nm for samples that were size fractionated immediately following the preconcentration step.
    • This is an equipment which fractionates proteins according to their isoelectric point.
    Synonyms
    split, cut up, cleave, carve up, slice up, chop up, split up
    1. 1.1 Separate (a mixture) by fractional distillation.
      分馏;分级;用分馏法取得
      the products were fractionated with boiling acetone in a Soxhlet apparatus
      Example sentencesExamples
      • In this experiment, mitochondrial proteins were fractionated using a long gel, which allowed the separation of all major mitochondrial proteins.
      • The resulting products were fractionated on an agarose gel.
      • The extract is then carefully fractionated by chromatographic separation methods.
      • Cell debris was removed by centrifugation, and the supernatant was fractionated by ammonium sulfate precipitation.
      • The obtained extracts were fractionated by acetone precipitation.
      Synonyms
      purify, refine, filter, treat, process
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