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One Molecule, Nearly 24 Million Spectra

GinorMass shows why database size does not necessarily reflect chemical diversity

  • October 7, 2026

  • 3 min

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  • 1

    GinorMass is a public repository containing 23,971,300 tandem mass spectra, all acquired from the single molecule arginine.

  • 2

    The repository demonstrates that a high spectrum count does not necessarily indicate broad chemical coverage.

  • 3

    Researchers acquired the spectra from an arginine reference standard using a quadrupole time-of-flight mass spectrometer under fixed conditions.

  • 4

    Repeated spectra can capture variation across instruments, laboratories, and acquisition conditions, but measurements under fixed conditions may become redundant.

  • 5

    The authors recommended reporting spectral counts alongside chemical diversity, acquisition conditions, annotation confidence, and data provenance.

Original Source(s)

One Molecule, Nearly 24 Million Spectra

  • October 7, 2026

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