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Related Concept Videos

Mass Spectrometry: Complex Analysis01:21

Mass Spectrometry: Complex Analysis

Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
MALDI-TOF Mass Spectrometry01:19

MALDI-TOF Mass Spectrometry

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...
Mass Spectrometers01:16

Mass Spectrometers

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:
Mass Spectrometry: Overview01:19

Mass Spectrometry: Overview

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...
Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

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...
Mass Spectrum: Interpretation01:24

Mass Spectrum: Interpretation

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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Navigating the Mass Spectrometry-Based Proteomic Data Using Free Computational Tools
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Navigating the Mass Spectrometry-Based Proteomic Data Using Free Computational Tools

Published on: August 19, 2025

Mass spectrometry made easy: the quest for simplicity.

Nicolas V Schwab1, Marcos N Eberlin

  • 1ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas - UNICAMP, Campinas, SP 13083-970, Brazil.

Drug Testing and Analysis
|September 20, 2012
PubMed
Summary

Revolutionary developments in mass spectrometry (MS) are making this complex technique simpler and more accessible. Ambient desorption/ionization methods enable easy, sensitive analysis in open environments without sample preparation.

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Area of Science:

  • Analytical Chemistry
  • Spectroscopy

Background:

  • Mass spectrometry (MS) is traditionally perceived as a complex and challenging analytical technique.
  • Simplicity and ease of use have rarely been associated with MS instrumentation and operation.

Purpose of the Study:

  • To highlight recent advancements in MS, particularly spray-based ambient desorption/ionization techniques.
  • To demonstrate how these innovations are transforming MS into a simpler, more accessible analytical tool.
  • To showcase the feasibility of performing MS analysis in real-world, open-atmosphere environments.

Main Methods:

  • Focus on spray-based ambient desorption/ionization techniques.
  • Analysis of chemical and biochemical samples in their natural environment.
  • Elimination of pre-separation and sample work-up steps.

Main Results:

  • MS is becoming significantly easier to use and implement.
  • Analysis can be performed rapidly, selectively, and with high sensitivity in open-air settings.
  • Complex sample matrices can be analyzed directly without extensive preparation.

Conclusions:

  • Simplicity is emerging as a key attribute of modern MS, complementing its speed, selectivity, sensitivity, and separation capabilities.
  • Ambient ionization techniques are making MS more accessible for diverse applications and users.
  • The traditional barriers to MS adoption are being overcome, expanding its utility across various fields.