SYNPEPTIDES / RESEARCH & INFORMATION
Peptide Encyclopedia
A concise vocabulary for reading peptide and analytical-science literature. These concepts do not establish the identity or suitability of any commercial material.
Peptide and residue
Peptides contain amino-acid units joined through amide linkages. A residue is the part incorporated into a chain after the bond-forming loss of the elements of water. IUPAC provides the formal definitions.
Chromatography and chromatogram
Chromatography separates components through their distribution between stationary and mobile phases. A chromatogram records a detector response during separation. Interpret each peak in the context of the method.
Mass spectrometry and tandem MS
Mass spectrometry characterizes ions through mass-to-charge information. Tandem methods examine selected ions and fragmentation relationships. Assignments depend on method, reference information and interpretation.
Identity, purity and traceability
Ask what the material is, what a method detects alongside it, and whether the evidence connects to the exact sample. A single headline number does not answer all three questions.