Extraction induced by emulsion breaking for As, Se and Hg determination in crude palm oil by vapor generation-AFS

•As, Se and Hg were determined using AFS after extraction induced by emulsion breaking.•Multivariate optimization was employed to optimize the extraction induced by EIEB.•The proposed method was applied in the analysis of crude palm oil. In this work is presented the development of a method for As a...

Full description

Saved in:
Bibliographic Details
Published in:Food chemistry 2020-07, Vol.318, p.126473-126473, Article 126473
Main Authors: Souza Valasques, Gisseli, Maria Pinto dos Santos, Ana, Levi França da Silva, Daniel, Mozart Ferreira da Mata Cerqueira, Uillian, Luis Costa Ferreira, Sérgio, Nei Lopes dos Santos, Walter, Almeida Bezerra, Marcos
Format: Article
Language:English
Subjects:
Arsenic
Atomic fluorescence spectrometry
Crude palm oil
Extraction induced by emulsion breaking
Mercury
Selenium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•As, Se and Hg were determined using AFS after extraction induced by emulsion breaking.•Multivariate optimization was employed to optimize the extraction induced by EIEB.•The proposed method was applied in the analysis of crude palm oil. In this work is presented the development of a method for As and Se determination in crude palm oil samples by hydride generation atomic fluorescence spectrometry and Hg by cold vapor atomic fluorescence spectrometry after ultrasound-assisted emulsification and extraction induced by emulsion breaking (EIEB). The optimization of the method was carried out by multivariate designs. The developed method has presented limits of quantification (LOQ) of 0.72, 0.12, and 1.5 μg L−1 for As, Hg, and Se, respectively. The precisions of the proposed method expressed as repeatability were 0.92, 2.2, and 3.7% RSD for 2 µg L−1 (n = 10) of As, Hg and Se, respectively. The developed methodology was applied in palm oil samples collected in the Bahia State. Concentrations (μg L−1) found in the samples were between
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2020.126473