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Manuscript ID : 693103 Visit : 190 Page: 357 - 366

10.22034/jchr.2022.693103

Article Type: Original Research

The application of Flame Atomic Absorption Spectrometry to evaluate Lead (II) in Vegetable Samples after Its Preconcentration by SA-DLLME

Subject Areas : Journal of Chemical Health Risks

Sajda .S. Affat 1

1 - Department of Chemistry, College of Science, University of Thi-Qar, Iraq

Received: 2021-08-05 Accepted : 2022-02-10 Published : 2023-06-01

Keywords: recovery, Matrix, Lead ion, SA-DLLME, Non-ionic surfactant, Vegetable samples,

Abstract :

In this paper, a new and environmentally friendly approach has been developed to determine the levels of lead in plant samples. To preconcentrate the lead ion, SA-DLLME (surfactant-assisted dispersive liquid-liquid micro-extraction) was used in the study of flame atomic absorption spectrometry (FAAS). The influence of the following analytical parameters on the quantitative recoveries of lead was studied: pH, type and amount of the extraction solvent, type and amount of the dispersing solvent, type and amount of the surfactant, centrifugation time and rate, amount of (APDC), sample volume and amount of matrix. The approach was validated using vegetable samples. The approach offered a (LOD) of 0.28 μg l-1, (LOQ) of 0.933 μg l-1, (RSD) of 1.2-4.3%, (EF) of 85, PF of 30, and ER% of (100.6-102.1)%.

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