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Related Concept Videos

Mass Spectrometry: Complex Analysis01:21

Mass Spectrometry: Complex Analysis

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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...
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Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

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Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and signal-to-noise ratio for the analyte. 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 collision-induced...
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Peptide Identification Using Tandem Mass Spectrometry01:33

Peptide Identification Using Tandem Mass Spectrometry

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Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
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Mass Spectrometry: Overview01:19

Mass Spectrometry: Overview

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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 electrospray 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...
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MALDI-TOF Mass Spectrometry01:19

MALDI-TOF Mass Spectrometry

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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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Mass Spectrometers01:16

Mass Spectrometers

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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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Related Experiment Video

Updated: Jun 18, 2025

Using a Cyclic Ion Mobility Spectrometer for Tandem Ion Mobility Experiments
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Ion Moblity Mass Spectrometry in Multi-omics Studies

Daniel Fochtman1, Anna Wojakowska1, Łukasz Marczak1

  • 1Pracownia Spektrometrii Mas, Instytut Chemii Bioorganicznej Polskiej Akademii Nauk, Poznań.

Postepy Biochemii
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Ion mobility spectrometry (IMS) enhances mass spectrometry (MS) analysis by improving compound identification and reducing noise. This technique offers faster analysis or more identifications, depending on experimental needs.

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An HS-MRM Assay for the Quantification of Host-cell Proteins in Protein Biopharmaceuticals by Liquid Chromatography Ion Mobility QTOF Mass Spectrometry
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Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification
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An HS-MRM Assay for the Quantification of Host-cell Proteins in Protein Biopharmaceuticals by Liquid Chromatography Ion Mobility QTOF Mass Spectrometry
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Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification
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Area of Science:

  • Analytical Chemistry
  • Biochemistry
  • Spectroscopy

Background:

  • Mass spectrometry (MS) is a key technique for identifying and quantifying molecules like proteins and lipids.
  • Current MS methods face limitations in the number of molecules identifiable within a single analysis.
  • There is a need for enhanced analytical techniques to improve throughput and data quality.

Purpose of the Study:

  • To explore the application of ion mobility spectrometry (IMS) to overcome MS limitations.
  • To demonstrate how IMS improves the identification capabilities of mass spectrometry.
  • To highlight the benefits of IMS-MS for complex sample analysis.

Main Methods:

  • Integration of ion mobility spectrometry (IMS) with mass spectrometry (MS).
  • Separation of ions based on their mobility in an electromagnetic field and gas pressure gradient.
  • Utilizing IMS-MS to add a second dimension to the analytical separation.

Main Results:

  • Significant improvement in the number of identified compounds compared to MS alone.
  • Reduction in background noise, leading to cleaner spectra.
  • Potential for reduced analysis time while maintaining identification numbers.

Conclusions:

  • Ion mobility spectrometry (IMS) is a valuable addition to mass spectrometry (MS) workflows.
  • IMS-MS enhances analytical performance by increasing identifications and reducing noise.
  • The choice of IMS analyzer is critical for optimizing analytical outcomes and ion detection.