Mass Spectrometry

Mass spectrometry (MS) is a widely utilized analytical technique employed to identify and quantify molecules based on their unique physical properties. It operates by first ionizing the sample, converting neutral molecules into ions. These ions are then separated using a magnetic or electric field, creating a spectrum where each ion’s mass-to-charge ratio (m/z) is plotted. This creates a “mass spectrum,” which displays the relative abundance of each ion. By analyzing this spectrum, scientists can precisely determine the molecular weight of a compound, identify unknown substances by comparing their fragmentation patterns to known compounds, and quantitatively measure the relative amounts of different molecules within a sample. Essentially, MS provides a ‘fingerprint’ of a molecule based on its mass and stability.

Mass spectrometry is a cornerstone in many scientific disciplines:

• Proteomics & Biochemistry: Identifying proteins, peptides, and metabolites
• Pharmaceuticals: Drug development, purity testing, and pharmacokinetics
• Environmental Science: Detecting pollutants and tracking chemical exposure
• Forensics: Toxicology screens and substance identification
• Food Safety: Monitoring contaminants and verifying authenticity