• 2021-04-14 问题

    层析(chromatography)

    层析(chromatography)

  • 2022-06-06 问题

    中英文互译:gas chromatography mass spectrometry

    中英文互译:gas chromatography mass spectrometry

  • 2022-05-27 问题

    In 1903, Mikhail Tsvet invented chromatography, an important__1__ technique.

    In 1903, Mikhail Tsvet invented chromatography, an important__1__ technique.

  • 2022-06-06 问题

    中英文互译:Liquid Chromatography nuclear magnetic resonance

    中英文互译:Liquid Chromatography nuclear magnetic resonance

  • 2022-06-06 问题

    中英文互译:High Performance Liquid Chromatography mass spectrometer

    中英文互译:High Performance Liquid Chromatography mass spectrometer

  • 2021-04-14 问题

    HPLC是高效液相色谱(High Performance Liquid Chromatography)的简称,其中LC是指什么?

    HPLC是高效液相色谱(High Performance Liquid Chromatography)的简称,其中LC是指什么?

  • 2022-06-29 问题

    以下不是色谱法的名称的是: A: 层析法 B: 层离法 C: chromatography D: crystallize

    以下不是色谱法的名称的是: A: 层析法 B: 层离法 C: chromatography D: crystallize

  • 2022-05-28 问题

    The purification methods commonly used in the analysis of traditional<br/>Chinese medicine preparations include ( ) A: Liquid-liquid extraction B: chromatography C: precipitation method D: distillation

    The purification methods commonly used in the analysis of traditional<br/>Chinese medicine preparations include ( ) A: Liquid-liquid extraction B: chromatography C: precipitation method D: distillation

  • 2021-04-14 问题

    色谱法(Chromatography)亦称色层法、层析法等。色谱法是分离、纯化和鉴定有机化合物的重要方法之一。? 正确|错误

    色谱法(Chromatography)亦称色层法、层析法等。色谱法是分离、纯化和鉴定有机化合物的重要方法之一。? 正确|错误

  • 2022-06-07 问题

    High pressure, high efficiency and high speed are the characteristics of modern liquid chromatography. What is the main cause of high pressure?‍ A: Speeding up the flow rate and shortening the analysis time‍ B: Significantly improving the separation efficiency C: The use of fine particles as stationary phase D: The use of a packed capillary column‍

    High pressure, high efficiency and high speed are the characteristics of modern liquid chromatography. What is the main cause of high pressure?‍ A: Speeding up the flow rate and shortening the analysis time‍ B: Significantly improving the separation efficiency C: The use of fine particles as stationary phase D: The use of a packed capillary column‍

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