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Mass Analyzers: Overview

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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 Analyzers: Common Types

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The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...

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Related Experiment Video

Updated: Jan 12, 2026

An Analytical Tool-box for Comprehensive Biochemical, Structural and Transcriptome Evaluation of Oral Biofilms Mediated by Mutans Streptococci

An Analytical Tool-box for Comprehensive Biochemical, Structural and Transcriptome Evaluation of Oral Biofilms Mediated by Mutans Streptococci

Published on: January 25, 2011

The Systematic Multiverse Analysis Registration Tool for defining multiverse analyses.

Cassie Ann Short¹, Yusuf Coşku Inceler¹, Maximilian Frank²

¹Department of Psychology, Carl von Ossietzky Universität Oldenburg, Oldenburg, Niedersachsen, Germany.

Royal Society Open Science

|October 30, 2025

Summary

This summary is machine-generated.

The Systematic Multiverse Analysis Registration Tool (SMART) simplifies creating robust scientific analyses. SMART enhances transparency and reproducibility in multiverse analysis, ensuring clearer reporting of research findings.

Keywords:

documentation multiverse analysis preregistration robustness transparency

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Area of Science:

Computational statistics
Data science methodology
Scientific reproducibility

Background:

Multiverse analysis systematically assesses result robustness across diverse data pipelines.
Defining multiverses is complex, leading to incomplete documentation and reduced transparency.
Lack of standardized methods hinders reproducibility in multiverse analysis.

Purpose of the Study:

Introduce the Systematic Multiverse Analysis Registration Tool (SMART).
Address the challenges in constructing and documenting multiverse analyses.
Enhance transparency, reproducibility, and interpretability of robustness assessments.

Main Methods:

SMART provides a guided, stepwise workflow for constructing multiverse analyses.
It documents user decisions regarding defensibility and equivalence.
Offers visual and numerical feedback to identify potential errors during construction.

Main Results:

SMART facilitates the creation of complete multiverses based on user criteria.
Generates exportable documentation for preregistration or supplementary materials.
Improves the transparency and rigor of multiverse construction processes.

Conclusions:

SMART enhances the interpretability of robustness claims in scientific research.
It promotes cohesion and standardization in multiverse analysis procedures.
Contributes to the broader goals of open and reproducible science.