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In this work, sensitive method was used for the first time by joining cloud point extraction with solvation system (CPE-SS) using aspirin as the organic reagent to form cloud point layer (CPL). It had a wavelength for final absorbance under λmax = 293 nm. Different kinds and concentrations of salting out with different extraction efficiencies were used to enhance the extraction efficiency. KNO3 as a salting out under 0.1 M showed maximum extraction efficiency in the presence of 40 μg of Cu(Ⅱ). The applications of extraction in this method had required the existence of 0.4 mL of Triton X-100 and heating under 85 ℃ for 20 minutes to form CPL quantitatively. The effect of different surfactants and various organic reagents to investigate the impact of interferences as well as spectrophotometric determination were also investigated in this study. Chicken, breast, cow meat (beef), cucumber, drainage fish, garden cress and lettuce showed low limit of detection (LOD) 0.018 ppm, limit of quantity (LOQ) 0.060 ppm and RSD% of 0.028 in 2 ppm.


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Aspirin in Food Samples for Separation and Micro Determination of Copper(Ⅱ) Using Cloud Point Extraction/Solvation Method

Show Author's information Ebaa Adnan Azooz1( )Jihan Razzaq Moslim2Safa Mageed Hameed2Shawket Kadhem Jawad2Emad Abbas Jaffar Al-Mulla3( )
The Gifted Students' School in Najaf. The General Directorate of Education Al-Najaf, Ministry of Education, Iraq
Chemistry Department, Faculty of Education for Women, University of Kufa, Al-Najaf, Iraq
Pathological Analysis Techniques, Faculty of Health and Medical Techniques, Al-Furat Al-Awsat Technical University, An-Najaf, Iraq

Abstract

In this work, sensitive method was used for the first time by joining cloud point extraction with solvation system (CPE-SS) using aspirin as the organic reagent to form cloud point layer (CPL). It had a wavelength for final absorbance under λmax = 293 nm. Different kinds and concentrations of salting out with different extraction efficiencies were used to enhance the extraction efficiency. KNO3 as a salting out under 0.1 M showed maximum extraction efficiency in the presence of 40 μg of Cu(Ⅱ). The applications of extraction in this method had required the existence of 0.4 mL of Triton X-100 and heating under 85 ℃ for 20 minutes to form CPL quantitatively. The effect of different surfactants and various organic reagents to investigate the impact of interferences as well as spectrophotometric determination were also investigated in this study. Chicken, breast, cow meat (beef), cucumber, drainage fish, garden cress and lettuce showed low limit of detection (LOD) 0.018 ppm, limit of quantity (LOQ) 0.060 ppm and RSD% of 0.028 in 2 ppm.

Keywords: Copper, Separation, Aspirin, Cloud point extraction, Solvent extraction

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Publication history

Received: 16 June 2020
Accepted: 27 October 2020
Published: 20 January 2021
Issue date: March 2021

Copyright

© Ebaa Adnan Azooz, Jihan Razzaq Moslim, Safa Mageed Hameed, Shawket Kadhem Jawad, and Emad Abbas Jaffar Al-Mulla.

Acknowledgements

The analysis in the advanced analytical Laboratory of Chemistry Department Faculty of Education for Women University of Kufa is exceedingly acknowledged.

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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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