Efficiency Enhancement of the Spectrophotometric Estimation of Zinc in Water, Food, Tobacco and Pharmaceutical Preparations Samples Utilizing Cloud Point Extraction
Moustafa, A., El-Sayed, H., Amin, A., El Haggar, A., Gouda, A. (2023). Efficiency Enhancement of the Spectrophotometric Estimation of Zinc in Water, Food, Tobacco and Pharmaceutical Preparations Samples Utilizing Cloud Point Extraction. EKB Journal Management System, 66(7), 553-562. doi: 10.21608/ejchem.2022.155962.6748
Ahmed H. Moustafa; Hassan A. El-Sayed; Alaa S Amin; Asmaa M. El Haggar; Ayman A Gouda. "Efficiency Enhancement of the Spectrophotometric Estimation of Zinc in Water, Food, Tobacco and Pharmaceutical Preparations Samples Utilizing Cloud Point Extraction". EKB Journal Management System, 66, 7, 2023, 553-562. doi: 10.21608/ejchem.2022.155962.6748
Moustafa, A., El-Sayed, H., Amin, A., El Haggar, A., Gouda, A. (2023). 'Efficiency Enhancement of the Spectrophotometric Estimation of Zinc in Water, Food, Tobacco and Pharmaceutical Preparations Samples Utilizing Cloud Point Extraction', EKB Journal Management System, 66(7), pp. 553-562. doi: 10.21608/ejchem.2022.155962.6748
Moustafa, A., El-Sayed, H., Amin, A., El Haggar, A., Gouda, A. Efficiency Enhancement of the Spectrophotometric Estimation of Zinc in Water, Food, Tobacco and Pharmaceutical Preparations Samples Utilizing Cloud Point Extraction. EKB Journal Management System, 2023; 66(7): 553-562. doi: 10.21608/ejchem.2022.155962.6748

Efficiency Enhancement of the Spectrophotometric Estimation of Zinc in Water, Food, Tobacco and Pharmaceutical Preparations Samples Utilizing Cloud Point Extraction

Egyptian Journal of Chemistry
Volume 66, Issue 7, July 2023, Page 553-562  XML PDF (542.25 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2022.155962.6748
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Authors
Ahmed H. Moustafaorcid 1; Hassan A. El-Sayedorcid 2; Alaa S Aminorcid 3; Asmaa M. El Haggarorcid 2; Ayman A Gouda email orcid 4
1Chemistry Department, Faculty of Sciences, Zagazig University, Zagazig, 44519, Egypt
2Chemistry Department, Faculty of Sciences, Zagazig University, Zagazig, 44519, Egypt.
3Chemistry Department, Faculty of Sciences, Benha University, Benha, Egypt.
4Chemistry Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
Abstract
To increase the analytical effectiveness of spectrophotometric detection of zinc (Zn(II)) in water, food, tobacco, and pharmaceutical preparations samples, cloud point extraction (CPE) and a new chromogenic reagent were used in this study. The proposed methodology is based on measuring the absorbance of a Zn(II) complex with 2-amino-4-(4-nitrophenyl) diazenyl) pyridine-3-ol (ANPDP) at pH 9.0 in Triton X-114 at maximum 595 and maximum 605 nm for methods without and with CPE. Investigation and optimization were done on the key variables determining CPE effectiveness. For techniques without CPE and with CPE, respectively, the calibration graph was linear under ideal conditions in the ranges of 10-140 µg mL-1 and 0.01-0.8 µg mL-1, with R2 = 0.9989 and 0.9997, respectively. For techniques without CPE and with CPE, the detection limits were 3.0 µg mL-1 and 0.003 µg mL-1 with a preconcentration factor of 50, respectively. As precision, the relative standard deviation (RSD%) is 4.0%. The interactions of various cations and anions have been studied. The proposed CPE method was successfully used to estimate Zn(II) in a variety of samples, including water, food, tobacco, and pharmaceutical preparations.
Keywords
Zinc; Water, food, tobacco and pharmaceutical preparations samples; Cloud point extraction; Spectrophotometry
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