Key Facts
- Definitions are research-oriented
- Terms are not dosing guidance
- Analytical terms describe methods, not guarantees
- Evidence terms identify the model studied
Identity terms
Sequence describes residue order; molecular formula describes elemental composition; molecular weight describes mass for a defined chemical form; an alias is an alternate name that may or may not identify the exact same form.
Analytical terms
HPLC describes chromatographic separation; LC-MS combines separation with mass detection; mass spectrometry measures ions by mass-to-charge; orthogonal analysis combines methods that answer different questions.
Evidence terms
In vitro refers to experiments outside an intact organism; in vivo refers to experiments in a living organism; preclinical commonly includes non-human laboratory models; clinical refers to research involving human participants.
Interpretation terms
Mechanism explains how an effect may occur; association describes a relationship without necessarily proving cause; endpoint is the measured outcome; replicate is a repeated experimental unit used to estimate variability.
What Remains Context-Dependent?
Scientific terminology can vary by field, so definitions should be read in the context of the specific paper or method being discussed.
How to Use This Concept in Research
This concept is most useful when it helps define the molecule, method, model or evidence level in a specific experiment. It should not be used as a shortcut for a clinical conclusion that the experiment did not test.
Reference Pathways
Use primary literature and authoritative scientific databases to verify compound-specific statements and methods.
Research Peptides · Peptide Research Guide · Peptide Science Library
Related Research Resources
Research Peptides · Peptide Research Guide · Peptide Science Library
