S, H., Saif, M., H. S, H. (2020). Test Method Validation for Quantitative Determination of Heavy Metals in Olive Oils by Inductive Coupled Plasma (ICP – AES) using Low Cost and Simple Extraction Method. test, 10(4), 1248-1262. doi: 10.21608/jesr.2023.287061
Hagag S; Mona Saif; Hoda H. S. "Test Method Validation for Quantitative Determination of Heavy Metals in Olive Oils by Inductive Coupled Plasma (ICP – AES) using Low Cost and Simple Extraction Method". test, 10, 4, 2020, 1248-1262. doi: 10.21608/jesr.2023.287061
S, H., Saif, M., H. S, H. (2020). 'Test Method Validation for Quantitative Determination of Heavy Metals in Olive Oils by Inductive Coupled Plasma (ICP – AES) using Low Cost and Simple Extraction Method', test, 10(4), pp. 1248-1262. doi: 10.21608/jesr.2023.287061
S, H., Saif, M., H. S, H. Test Method Validation for Quantitative Determination of Heavy Metals in Olive Oils by Inductive Coupled Plasma (ICP – AES) using Low Cost and Simple Extraction Method. test, 2020; 10(4): 1248-1262. doi: 10.21608/jesr.2023.287061

Test Method Validation for Quantitative Determination of Heavy Metals in Olive Oils by Inductive Coupled Plasma (ICP – AES) using Low Cost and Simple Extraction Method

Journal of Environmental Studies and Researches
Article 2, Volume 10, Issue 4, December 2020, Pages 1248-1262    PDF (780.08 K)
Document Type: Original Article
DOI: 10.21608/jesr.2023.287061
Authors
Hagag S1; Mona Saif2; Hoda H. S* 1
1Nano-Photochemistry and its Environmental Applications Laboratory, Environmental Studies and Research Institute (ESRI), University of Sadat City, Sadat City, 32897 Menofia, Egypt
2Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, 11711 Cairo, Egypt.
Abstract
ABSTRACT
    The aim of this study is to demonstrate a valid and simple extraction method for the extraction of heavy metals from olive oil and its quantitative determination by ICP-AES technique. Fifteen olive oil samples are collected from different manufacturing companies originates from five countries. Fourteen metals are quantitively detected in all samples including; Aluminum, Arsenic, Calcium, Cadmium, Cobalt, Chromium, Copper, Iron, Potassium, Magnesium, Manganese, Nickel, Lead and Zinc. A simple extraction method has been proposed for the extraction of heavy metals from the raw oil samples based on diluted 10% HNO3. Test method validation procedures have been carried out for the quantitative analytical determination of the detected trace metals in the investigated oil samples. The trace elements are found to be in the concentration range from 0.0001 to 8.39 mg.kg-1. As a result of the test method validation; linearity (R2) is above 0.99, the recovery ranged between (72.63% to 124.62%), the limit of detection and the limit of quantitation are between (0.006– 2.32 µg.kg-1) and (0.022 – 7.68 µg.kg-1) respectively. The relative standard deviation (RSDs) for repeatability and ruggedness are found to be lower than 2.2% for selected elements, which confirms the precision of the ICP-AES analytical method. The results demonstrate the validity of accurate, precise, rugged, selective, specific and stable ICP-AES determination method for trace metal analysis in raw olive oil samples that based on the proposed simple extraction method.    
 
Keywords
Key words : Heavy metals; ICP-AES; Olive oil; Method validation
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