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Updated: Jul 8, 2026

Direct Analysis of Single Cells by Mass Spectrometry at Atmospheric Pressure
08:19

Direct Analysis of Single Cells by Mass Spectrometry at Atmospheric Pressure

Published on: September 4, 2010

对murchison,murray和allende碳酸二烯酸的氨基酸分析

J R Cronin, C B Moore

    Science (New York, N.Y.)
    |June 25, 1971
    PubMed
    概括

    在三种碳酸里特中分析了水中可提取的氨基酸. 默奇森-穆雷石显示出相似的组成,表明II型石的本土起源,而Allende (III型) 则缺乏可检测的氨基酸.

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    Characterization, Quantification and Compound-specific Isotopic Analysis of Pyrogenic Carbon Using Benzene Polycarboxylic Acids (BPCA)

    Published on: May 16, 2016

    相关概念视频

    ¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

    ¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

    When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...