Scientific Glossary

A species derived from acetic acid that can serve as a counterion.

Association of molecules into larger assemblies.

The order of residues describing a peptide chain.

Determination of quantity or activity using a defined procedure.

A plot of detector response over a separation.

An ion associated with a species of opposite charge.

A transformation of amide groups that can alter peptide species.

A bacterial component requiring its own testing and interpretation.

Liquid chromatography separates components under a defined analytical method.

Mass spectrometry capable of distinguishing signals close in mass-to-charge ratio.

A combination of chromatographic separation and mass spectrometry.

Drying that removes solvent from previously frozen material.