| 释义 |
ampholyte, n. Chem.|ˈæmfəlaɪt|
[f. amphoteric a. + electrolyte n.]
An electrolyte possessing both acidic and basic groups.
1921D. Burns Introd. Biophysics vii. 59 Substances which produce both H· and OH′ ions on dissociation are called amphoteric electrolytes or ampholytes. 1940Glasstone 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. 1982T. 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. 1989Jrnl. Exper. Bot. LX. 1017/2 The prolonged, multiple exposures to acid, ampholytes, salts, and other chemicals during sample preparation are a possible cause of this blockage. |