Determination of ascorbyl 6-palmitate in food matrices by amperometric flow injection analysis

Analyst. 2001 Aug;126(8):1466-8. doi: 10.1039/b103192a.

Abstract

In this paper a rapid method based on a FIA (flow injection analysis) system with amperometric detection for the evaluation of ascorbyl 6-palmitate in foods is described. The selectivity of the proposed method is related to the low anodic potential applied to the working glassy carbon electrode (+0.1 V vs. Ag/AgCl) that leaves out interferences from ascorbic acid and phenolic compounds. By flow injection analysis, under optimised conditions, the calibration curve was linear in the range 0-20 mg l(-1) and the detection limit was 0.2 mg l(-1).

MeSH terms

  • Ascorbic Acid / analogs & derivatives*
  • Ascorbic Acid / analysis*
  • Electrochemistry / methods
  • Flow Injection Analysis / methods
  • Food Analysis / methods*

Substances

  • Ascorbic Acid
  • 6-O-palmitoylascorbic acid