mass spectrum: meaning, definition, pronunciation and examples
Low (technical)Technical/Scientific
Quick answer
What does “mass spectrum” mean?
A plot representing the relative abundances of ions in a sample as a function of their mass-to-charge ratio, produced by a mass spectrometer.
Audio
Pronunciation
Definition
Meaning and Definition
A plot representing the relative abundances of ions in a sample as a function of their mass-to-charge ratio, produced by a mass spectrometer.
The characteristic pattern of peaks produced by mass spectrometry, used to identify and quantify the chemical components of a substance. In broader scientific contexts, it can metaphorically refer to any distribution of items according to a specific measured property.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling of related terms may differ (e.g., analyse/analyze).
Connotations
Identically precise and technical in both variants.
Frequency
Equally low frequency and confined to scientific/technical contexts in both regions.
Grammar
How to Use “mass spectrum” in a Sentence
The mass spectrum of [compound/substance]A mass spectrum was recorded for [sample]Analysis of the mass spectrum revealed [finding]Vocabulary
Collocations
Examples
Examples of “mass spectrum” in a Sentence
verb
British English
- The sample was mass-spectrometred to produce a spectrum.
- They will mass-spectrum the compound.
American English
- The sample was mass-spec'd to get a spectrum.
- They will run mass spec on the compound.
adverb
British English
- The fragments were identified mass-spectrometrically.
American English
- The sample was analysed by mass spectrometry.
adjective
British English
- The mass-spectral data was conclusive.
- They performed a mass-spectrometric analysis.
American English
- The mass-spec data was conclusive.
- They performed a mass-spec analysis.
Usage
Meaning in Context
Business
Virtually never used, except in highly specific contexts like pharmaceuticals or chemical manufacturing R&D.
Academic
Core term in chemistry, biochemistry, pharmacology, forensic science, and environmental science publications and lab reports.
Everyday
Extremely rare. Would only be used by a scientist explaining their work in lay terms.
Technical
The primary and almost exclusive domain of use. Essential terminology in analytical chemistry, proteomics, metabolomics, and materials science.
Vocabulary
Synonyms of “mass spectrum”
Strong
Neutral
Weak
Vocabulary
Antonyms of “mass spectrum”
Watch out
Common Mistakes When Using “mass spectrum”
- Incorrect plural: 'mass spectrums' (correct: 'mass spectra').
- Confusing 'mass spectrum' with a 'chromatogram' (a separation technique often coupled with mass spectrometry).
- Using it as a countable noun without an article or determiner, e.g., 'We need mass spectrum' (correct: 'We need a mass spectrum' or 'We need to obtain the mass spectrum').
FAQ
Frequently Asked Questions
No. Mass spectrometry is the technique or process. A mass spectrum is the output graph or data set produced by that technique.
The correct plural is 'mass spectra'.
It is foundational in analytical chemistry, biochemistry (proteomics, metabolomics), pharmacology, forensic science, environmental monitoring, and materials science.
It can be used for both. The presence of specific peaks identifies compounds, while the intensity (height) of those peaks can be used to quantify the amount present.
A plot representing the relative abundances of ions in a sample as a function of their mass-to-charge ratio, produced by a mass spectrometer.
Mass spectrum is usually technical/scientific in register.
Mass spectrum: in British English it is pronounced /ˌmæs ˈspek.trəm/, and in American English it is pronounced /ˌmæs ˈspek.trəm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “N/A”
Learning
Memory Aids
Mnemonic
Think of a 'spectrum' of masses – like a rainbow, but instead of colours, it shows the different 'weights' (mass-to-charge ratios) of particles from a sample, plotted on a graph.
Conceptual Metaphor
A FINGERPRINT or SIGNATURE (a mass spectrum uniquely identifies a compound). A MAP or CHART (it visually charts the landscape of ionic fragments).
Practice
Quiz
What does a mass spectrum primarily represent?