Digital image method based on a smartphone assisted by hydrophobic natural deep eutectic solvent for iron quantification in dietary supplements

Analytical Methods 2026

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Authors: Gabriel Bercley De Lima Vitorino, Jackson Rodrigo dos Santos Silva, Vinicius Alcantara carvalho, João Paulo de Almeida, Willian Toito Suarez, Severino Carlos B. Oliveira, Vagner Bezerra dos Santos
DOI: 10.1039/d6ay00456c
Cited by: 3
References: 93

Abstract

, with recoveries ranging from 92.0% to 106%. Statistical tests indicated equivalence in variance and average from analysis of total Fe in dietary supplements when compared to UV-vis spectrophotometry methods. In addition, the method achieved a green score of 0.84, demonstrating to be a green analytical method. This portable and cost-effective approach represents a significant advancement for green methods, and is useful for quality control of supplements, as well as potential application to other matrices. In fact, the method presents a high selectivity for Fe in the presence of several inorganic and organic compounds with good sensitivity and selectivity.

Fields of Study & Subjects

Biosensors and Analytical Detection Advanced Chemical Sensor Technologies Heavy Metals in Plants

Publication details

Journal / source
Analytical Methods
Publisher
Royal Society of Chemistry (RSC)
Volume
18
Issue
20
Pages
4249–4262
Publication date
1 January 2026
Language
EN