Mass chromatogram

Mass chromatogram

A mass chromatogram is a plot of the Total Ionization Current (TIC) against the retention time, generated by summing all the mass spectra obtained during a chromatographic run. It provides a visual representation of the abundance of selected ions at different retention times.From: Advanced Testing and Characterization of Bituminous Materials, Two Volume Set [2019], Synthesis of cracked Mahua oil using coal ash catalyst for diesel engine application [2020]

Determinative Techniques to Measure Organics and Inorganics

View Chapter

Purchase Book

Published in Paul R. Loconto, Trace Environmental Quantitative Analysis, 2020

Paul R. Loconto

A plot of ion abundance for a selected m/z against chromatographic run time yields a mass chromatogram. In other words, data from a GC-MS needs to be interpreted in three dimensions even though the analyst is seeing on the PC screen only two dimensions at any moment. Figure 4.72 provides the Cartesian coordinates in an attempt to better understand the three-dimensional

Synthesis of cracked Mahua oil using coal ash catalyst for diesel engine application

View Article

Journal Information

Published in International Journal of Ambient Energy, 2020

N. Muthukumaran, S. Prasanna Raj Yadav, C. G. Saravanan, T. Sekar

The chemical properties of cracked oils can be analyzed by gas chromatography-mass spectroscopy (GC-MS) and Fourier transforms infrared (FT-IR) techniques. GC-MS study is used for qualitative identification and quantitative measurement of organic compounds in complex mixtures. In GC-MS, a compound is converted into fragments and then total ion abundance is detected and plotted versus time or a selected mass to charge (m/z) ratio. A mass spectrum of selected ions obtained during a chromatographic run as mass chromatogram. GC-MS is a very powerful tool for identification. In addition to the separation of volatile component of complex mixture, it can also record a mass spectrum for each compound. The instruments provide two separate dimensions of information about the component in the sample GC retention time and electron ionisation mass spectra.

Explore chapters and articles related to this topic

Determinative Techniques to Measure Organics and Inorganics

Synthesis of cracked Mahua oil using coal ash catalyst for diesel engine application