STP1019

    Analysis of Coal-Derived Materials with Low Volatility by Low-Voltage, High-Resolution Mass Spectrometry in Conjunction with Direct-Insertion-Probe Techniques

    Published: Jan 1989


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    Abstract

    A low-voltage, high-resolution mass spectrometric (LVHRMS) method utilizing direct-insertion-probe techniques for analyses of coal-derived materials with low volatility is presented. The reproducibility of the LVHRMS-direct-insertion-probe method for determining heteroatomic composition, homologous series, and carbon number distributions of coal-derived materials is demonstrated. An auxiliary method to compute the experimental masses of sample peaks is described. The application of the LVHRMS-direct-insertion-probe method to the analyses of coal extracts treated with molten caustic to remove organosulfur compounds is reported. The LVHRMS-direct-insertion-probe method described can be applied to other complex materials containing heteroatoms.

    Keywords:

    low-voltage, high-resolution mass spectrometry, direct-insertion-probe techniques, coal extracts, organosulfur removal, molten caustics, mass spectrometry, fossil fuels


    Author Information:

    Schmidt, CE
    Research chemist and research chemist, DOE/PETC, Pittsburgh, PA

    Sprecher, RF
    Research chemist and research chemist, DOE/PETC, Pittsburgh, PA


    Paper ID: STP18678S

    Committee/Subcommittee: D02.04

    DOI: 10.1520/STP18678S


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