Supramolecular deep eutectic solvent: a powerful tool for pre-concentration of trace metals in edible oil.
Anal Bioanal Chem
; 416(15): 3533-3542, 2024 Jun.
Article
in En
| MEDLINE
| ID: mdl-38691170
ABSTRACT
The utilization of supramolecular deep eutectic solvent eddy-assisted liquid-liquid microextraction utilizing 2-hydroxypropyl ß-cyclodextrin (SUPRADES) has been identified as a successful method for pre-enriching Cu, Zn, and Mn in vegetable oil samples. Determination of each element was conducted by inductively coupled plasma optical emission spectrometry (ICP-OES) after digestion of metal-enriched phases. Various parameters were examined, including the composition of SUPRADES species [2HP-ß-CD DL-lactic acid], a cyclodextrin mass ratio of 20 wt%, a water bath temperature of 75 °C, an extractor volume of 800 µL, a dispersant volume of 50 µL, and an eddy current time of 5 min. Optimal conditions resulted in extraction rates of 99.6% for Cu, 105.2% for Zn, and 101.5% for Mn. The method exhibits a broad linear range spanning from 10 to 20,000 µg L-1, with determination coefficients exceeding 0.99 for all analytes. Enrichment coefficients of 24, 21, and 35 were observed. Limits of detection ranged from 0.89 to 1.30 µg L-1, while limits of quantification ranged from 3.23 to 4.29 µg L-1. The unique structural characteristics of the method enable the successful determination of trace elements in a variety of edible vegetable oils.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Solvents
/
Trace Elements
/
Plant Oils
Language:
En
Journal:
Anal Bioanal Chem
Year:
2024
Document type:
Article
Affiliation country:
China