Determination of antimony and tin in beverages using inductively coupled plasma-optical emission spectrometry after ultrasound-assisted ionic liquid dispersive liquid-liquid phase microextraction
| Autor: | James Ramontja, Luthando Nyaba, N. Raphael Biata, Nomvano Mketo, Philiswa N. Nomngongo |
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| Rok vydání: | 2017 |
| Předmět: |
Antimony
Materials science Liquid Phase Microextraction Calibration curve Analytical chemistry Ionic Liquids chemistry.chemical_element 02 engineering and technology Ultrasound assisted 01 natural sciences Analytical Chemistry Beverages chemistry.chemical_compound Phase (matter) Optical emission spectrometry Chromatography Spectrum Analysis 010401 analytical chemistry General Medicine 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Tin Ionic liquid Inductively coupled plasma 0210 nano-technology Food Science |
| Zdroj: | Food Chemistry. 237:904-911 |
| ISSN: | 0308-8146 |
| Popis: | 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-250µgL-1 (r2=0.9987) for Sb and LOQ-350µgL-1 for Sn. The LOD and LOQ of Sb and Sn ranged from 1.2to 2.5ngL-1 and 4.0 to 8.3ngL-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. |
| Databáze: | OpenAIRE |
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