ampholyten.
Chem.
An electrolyte possessing both acidic and basic groups.
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ampholyte1921
1921 D. Burns Introd. Biophysics vii. 59 Substances which produce both H· and OH′ ions on dissociation are called amphoteric electrolytes or ampholytes.
1940 Glasstone Text-bk. Physical Chem. xii. 976 An ampholyte is at its iso-electric point when the extent of ionization as an acid is equal to that as a base.
1982 T. M. Devlin Textbk. Biochem. ii. 43 In electrophoresis, an ampholyte (protein, peptide, or amino acid) in a solution buffered at a particular pH is placed in an electric field.
1989 Jrnl. Exper. Bot. 60 1017/2 The prolonged, multiple exposures to acid, ampholytes, salts, and other chemicals during sample preparation are a possible cause of this blockage.
This entry has not yet been fully updated (first published 1997; most recently modified version published online November 2010).
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