Molecular Mass Distribution Calculator

Calculate Mass Distribution Patterns

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Isotope Pattern Calculator

Calculate molecular isotope patterns

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Fragment Analysis Calculator

Calculate molecular fragment patterns

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Mass Accuracy Calculator

Calculate mass accuracy and resolution

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Understanding Mass Distribution

Basic Concepts

Key principles:

  • Mass spectrometry
  • Isotope patterns
  • Molecular fragments
  • Mass accuracy

Analysis Methods

Common techniques:

  • High-resolution MS
  • Tandem MS
  • Ion mobility MS
  • Isotope ratio MS

Applications

Uses in chemistry:

  • Structure elucidation
  • Compound identification
  • Reaction monitoring
  • Quality control

Advanced Topics

Special cases:

  • Complex mixtures
  • Multiply charged ions
  • Fragmentation patterns
  • Ion suppression

Data Analysis

Important aspects:

  • Peak assignment
  • Resolution
  • Mass accuracy
  • Calibration

Essential Mass Distribution Formulas

Mass Accuracy

ppm = |Mobs - Mcalc|/Mcalc × 10⁶

Resolution

R = M/ΔM

Relative Abundance

RA = (I/Imax) × 100