Determination of antimony and tin in beverages using inductively coupled plasma-optical emission spectrometry after ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction

N. Raphael Biata; Luthando Nyaba; James Ramontja; Nomvano Mketo; Philiswa N. Nomngongo

doi:10.1016/j.foodchem.2017.06.058

Determination of antimony and tin in beverages using inductively coupled plasma-optical emission spectrometry after ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction

N. Raphael Biata, Luthando Nyaba, James Ramontja, Nomvano Mketo, Philiswa N. Nomngongo

Chemical Sciences

University of Johannesburg

Research output: Contribution to journal › Article › peer-review

52 Citations (Scopus)

Abstract

The aim of this study was to develop a simple and fast ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction (UA-IL-DLLME) method for preconcetration of trace antimony and tin in beverage samples. The novelty of this study was based on the application of ligandless UA-IL-DLLME using low-density ionic liquid and organic solvents for preconcentration of Sb and Sn. The concentration of Sb and Sn were quantified using ICP-OES. Under the optimum conditions, the calibration graph was found to be LOQ-250 µg L⁻¹ (r² = 0.9987) for Sb and LOQ-350 µg L⁻¹ for Sn. The LOD and LOQ of Sb and Sn ranged from 1.2to 2.5 ng L⁻¹ and 4.0 to 8.3 ng L⁻¹, respectively, with high preconcentration factors. The precisions (%RSD) of the proposed method ranged from 2.1% to 2.5% and 3.9% to 4.7% for Sb and Sn, respectively. The proposed method was successfully applied for determination of Sb and Sn in beverages.

Original language	English
Pages (from-to)	904-911
Number of pages	8
Journal	Food Chemistry
Volume	237
DOIs	https://doi.org/10.1016/j.foodchem.2017.06.058
Publication status	Published - 15 Dec 2017

Keywords

Antimony
Ionic liquid-dispersive liquid-liquid microextraction
Non-alcoholic beverages
Small central composite design matrix
Tin

ASJC Scopus subject areas

Analytical Chemistry
Food Science

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10.1016/j.foodchem.2017.06.058

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title = "Determination of antimony and tin in beverages using inductively coupled plasma-optical emission spectrometry after ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction",

abstract = "The aim of this study was to develop a simple and fast ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction (UA-IL-DLLME) method for preconcetration of trace antimony and tin in beverage samples. The novelty of this study was based on the application of ligandless UA-IL-DLLME using low-density ionic liquid and organic solvents for preconcentration of Sb and Sn. The concentration of Sb and Sn were quantified using ICP-OES. Under the optimum conditions, the calibration graph was found to be LOQ-250 µg L−1 (r2 = 0.9987) for Sb and LOQ-350 µg L−1 for Sn. The LOD and LOQ of Sb and Sn ranged from 1.2to 2.5 ng L−1 and 4.0 to 8.3 ng L−1, respectively, with high preconcentration factors. The precisions (%RSD) of the proposed method ranged from 2.1% to 2.5% and 3.9% to 4.7% for Sb and Sn, respectively. The proposed method was successfully applied for determination of Sb and Sn in beverages.",

keywords = "Antimony, Ionic liquid-dispersive liquid-liquid microextraction, Non-alcoholic beverages, Small central composite design matrix, Tin",

author = "Biata, {N. Raphael} and Luthando Nyaba and James Ramontja and Nomvano Mketo and Nomngongo, {Philiswa N.}",

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Determination of antimony and tin in beverages using inductively coupled plasma-optical emission spectrometry after ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction. / Biata, N. Raphael; Nyaba, Luthando; Ramontja, James et al.
In: Food Chemistry, Vol. 237, 15.12.2017, p. 904-911.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Determination of antimony and tin in beverages using inductively coupled plasma-optical emission spectrometry after ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction

AU - Biata, N. Raphael

AU - Nyaba, Luthando

AU - Ramontja, James

AU - Mketo, Nomvano

AU - Nomngongo, Philiswa N.

PY - 2017/12/15

Y1 - 2017/12/15

N2 - The aim of this study was to develop a simple and fast ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction (UA-IL-DLLME) method for preconcetration of trace antimony and tin in beverage samples. The novelty of this study was based on the application of ligandless UA-IL-DLLME using low-density ionic liquid and organic solvents for preconcentration of Sb and Sn. The concentration of Sb and Sn were quantified using ICP-OES. Under the optimum conditions, the calibration graph was found to be LOQ-250 µg L−1 (r2 = 0.9987) for Sb and LOQ-350 µg L−1 for Sn. The LOD and LOQ of Sb and Sn ranged from 1.2to 2.5 ng L−1 and 4.0 to 8.3 ng L−1, respectively, with high preconcentration factors. The precisions (%RSD) of the proposed method ranged from 2.1% to 2.5% and 3.9% to 4.7% for Sb and Sn, respectively. The proposed method was successfully applied for determination of Sb and Sn in beverages.

AB - The aim of this study was to develop a simple and fast ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction (UA-IL-DLLME) method for preconcetration of trace antimony and tin in beverage samples. The novelty of this study was based on the application of ligandless UA-IL-DLLME using low-density ionic liquid and organic solvents for preconcentration of Sb and Sn. The concentration of Sb and Sn were quantified using ICP-OES. Under the optimum conditions, the calibration graph was found to be LOQ-250 µg L−1 (r2 = 0.9987) for Sb and LOQ-350 µg L−1 for Sn. The LOD and LOQ of Sb and Sn ranged from 1.2to 2.5 ng L−1 and 4.0 to 8.3 ng L−1, respectively, with high preconcentration factors. The precisions (%RSD) of the proposed method ranged from 2.1% to 2.5% and 3.9% to 4.7% for Sb and Sn, respectively. The proposed method was successfully applied for determination of Sb and Sn in beverages.

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KW - Ionic liquid-dispersive liquid-liquid microextraction

KW - Non-alcoholic beverages

KW - Small central composite design matrix

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Determination of antimony and tin in beverages using inductively coupled plasma-optical emission spectrometry after ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction

Abstract

Keywords

ASJC Scopus subject areas

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