Determination of ascorbyl 6-palmitate in food matrices by amperometric flow injection analysis.
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).
Buratti
S
S
Dipartimento di Scienze e Tecnologie Alimentari e Microbiologiche, Università degli Studi di Milano, Italy.
Cosio
M S
MS
Benedetti
S
S
Mannino
S
S
D001205:Ascorbic Acid / Q000031:analogs & derivatives* / Q000032:analysis*; D004563:Electrochemistry / Q000379:methods; D017022:Flow Injection Analysis / Q000379:methods; D005504:Food Analysis / Q000379:methods*
D001205:Ascorbic Acid; C031226:6-O-palmitoylascorbic acid