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Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and...
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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 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.
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There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
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Interferometric Mass Spectrometry.

Radu Ionicioiu1

  • 1Horia Hulubei National Institute of Physics and Nuclear Engineering, 077125 Bucharest-Măgurele, Romania.

Journal of the American Society for Mass Spectrometry
|May 20, 2023
PubMed
Summary
This summary is machine-generated.

Interferometric mass spectrometry (Interf-MS) offers a novel quantum interference-based approach to mass separation. This technique complements accelerator mass spectrometry (AMS) by enabling compact, mobile devices for analyzing challenging samples.

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Area of Science:

  • Physics
  • Analytical Chemistry
  • Quantum Technologies

Background:

  • Accelerator mass spectrometry (AMS) is a versatile technique used across various scientific disciplines.
  • AMS requires large, specialized equipment, limiting its accessibility to major laboratories.
  • Current AMS methods analyze the mass-to-charge ratio (m/q) in a high-velocity regime.

Purpose of the Study:

  • Introduce interferometric mass spectrometry (Interf-MS) as a novel mass separation technique.
  • Highlight the unique principles and advantages of Interf-MS compared to existing methods.
  • Explore potential applications for Interf-MS, particularly in areas where AMS is limited.

Main Methods:

  • Utilize quantum interference and the wave-like properties of matter for mass separation.
  • Employ a low-velocity regime for sample analysis.
  • Separate samples based on absolute mass (m), not mass-to-charge ratio (m/q).

Main Results:

  • Interf-MS provides a complementary approach to AMS, leveraging quantum phenomena.
  • The method allows for mass separation based on absolute mass (m).
  • Samples are analyzed in a low-velocity regime, distinct from AMS.

Conclusions:

  • Interf-MS offers a novel pathway for mass spectrometry, distinct from traditional AMS.
  • Potential applications include the development of compact, mobile mass spectrometry devices.
  • Interf-MS is suitable for analyzing sensitive molecules and neutral samples that are challenging for AMS.