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Related Concept Videos

MALDI-TOF Mass Spectrometry01:19

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Mass spectrometry is a powerful characterization technique that can identify and separate a wide variety of compounds ranging from chemical to biological entities, based on their mass-to-charge ratio (m/z). The instruments that allow this detection, known as mass spectrometers, have three components: an ion source, a mass analyzer, and a detector. These spectrometers differ based on the nature of their ion source and analyzers.Matrix-assisted laser desorption ionization (MALDI) is a commonly...
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An unknown compound can be established by identifying the molecular ion peak in the mass spectrum. The molecular ion peak is often weak or absent due to the predominance of fragmentation in high-energy electron beams. In such cases, a soft-energy electron beam can be used to scan the spectrum to enhance the intensity of the molecular ion peak. Additionally, chemical ionization, field ionization, and desorption ionization spectra are used to obtain a relatively intense molecular ion peak.To...
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Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
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This lesson details the instrumentation of a mass spectrometer—a physical instrument to perform mass spectrometry on analyte molecules and record the characteristic mass spectra. This is achieved via three chief functions:
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Mass Analyzers: Overview01:13

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The mass analyzer is a crucial component of the mass spectrometer. In the ionization chamber, the vaporized sample is bombarded with a high-energy electron beam to generate a radical cation and further fragment into neutral molecules, radicals, and cations. A series of negatively charged accelerator plates accelerate the cations into the mass analyzer. The mass analyzer separates ions according to their mass-to-charge (m/z) ratios and then directs them to the detector. The common types of mass...
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Mass spectrometry is an analytical technique used to determine the molecular mass and molecular formula of a compound. The basic principle of mass spectrometry is to generate ions from the analyte molecule and measure these ion abundances against their molecular mass. One common type of ionization, known as electron ionization or EI, bombards the analyte molecules in the gas phase with high-energy electron beams. The electron beams displace an electron from the molecule and leave behind a...
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Updated: May 4, 2026

Whole-body Mass Spectrometry Imaging by Infrared Matrix-assisted Laser Desorption Electrospray Ionization IR-MALDESI
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MASH Suite: a user-friendly and versatile software interface for high-resolution mass spectrometry data

Huseyin Guner1, Patrick L Close, Wenxuan Cai

  • 1Human Proteomics Program, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA.

Journal of the American Society for Mass Spectrometry
|January 4, 2014
PubMed
Summary

New software, MASH Suite, simplifies processing and validation of high-resolution mass spectrometry (HRMS) data. This tool enhances interpretation for complex proteomics and metabolomics studies.

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Area of Science:

  • Analytical Chemistry
  • Biochemistry
  • Computational Biology

Background:

  • Advancements in Fourier transform mass spectrometry (FTMS) enable routine high-resolution, high-accuracy mass measurements.
  • Existing software for interpreting high-resolution MS data is underdeveloped, lacking user-friendly visualization and validation tools.

Purpose of the Study:

  • To develop MASH Suite, a user-friendly software interface for processing and interpreting high-resolution MS data.
  • To provide tools for easy navigation, visualization, and manual validation of computational results in MS data analysis.

Main Methods:

  • Development of MASH Suite, a versatile software interface.
  • Implementation of features for data analysis, visualization, and manual validation.
  • Application to top-down, middle-down, and bottom-up MS data interpretation.

Main Results:

  • MASH Suite offers a user-friendly interface for navigating complex high-resolution MS data.
  • The software facilitates easy, fast, and reliable interpretation of diverse MS data types.
  • Manual validation of automatically processed results is streamlined.

Conclusions:

  • MASH Suite significantly aids in the comprehensive interpretation and validation of high-resolution MS data.
  • The software ensures high accuracy and reliability in data analysis.
  • MASH Suite is freely available, convenient, and easy to operate for researchers.