In this work, the extraction induced by emulsion breaking procedure coupled to FI-FAAS was developed for the zinc determination in edible oil samples (canola oil, corn oil, hazelnut oil, olive oil and sunflower oil).
This procedure presents clear advantages over dilution in an organic solvent or acid digestion, in terms of simplicity of sample preparation, short extraction time, the use
of inorganic standards for calibration, easy coupling with FI-FAAS which reduces contamination of the original sample and partial loss of analytes.
It also avoids the use of large volumes of oxidising acids and organic solvents.
The developed procedure was successfully applied in the determination of the zinc in real samples.
The results indicated that the EIEB is simple, fast and provide good limit
of detection when FI-FAAS is used as the quantification technique.
In this work, the extraction induced by emulsion breaking procedure coupled to FI-FAAS was developed for the zinc determination in edible oil samples (canola oil, corn oil, hazelnut oil, olive oil and sunflower oil).
This procedure presents clear advantages over dilution in an organic solvent or acid digestion, in terms of simplicity of sample preparation, short extraction time, the use
of inorganic standards for calibration, easy coupling with FI-FAAS which reduces contamination of the original sample and partial loss of analytes.
It also avoids the use of large volumes of oxidising acids and organic solvents.
The developed procedure was successfully applied in the determination of the zinc in real samples.
The results indicated that the EIEB is simple, fast and provide good limit
of detection when FI-FAAS is used as the quantification technique.
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