Aspartate analysis in formulations using a new enzyme sensor

J Pharm Biomed Anal. 1995 Apr;13(4-5):439-47. doi: 10.1016/0731-7085(95)01257-l.

Abstract

A biosensor has been developed for the purpose of directly analysing aspartate in pharmaceutical formulations and aspartame in sweeteners. This biosensor consists of an ammonia-sensitive gas-diffusion electrode and the enzyme L-aspartase immobilized by means of polyazetidine on a dialysis membrane.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aspartame / analysis
  • Aspartate Ammonia-Lyase / chemistry*
  • Aspartic Acid / analysis*
  • Biosensing Techniques*
  • Dialysis
  • Enzymes, Immobilized / chemistry*
  • Hydrogen-Ion Concentration
  • Membranes, Artificial

Substances

  • Enzymes, Immobilized
  • Membranes, Artificial
  • Aspartic Acid
  • Aspartate Ammonia-Lyase
  • Aspartame