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

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عنوان URL للمقالة


رقم المقالة : 693103 زيارة : 223 الصفحة: 357 - 366

10.22034/jchr.2022.693103

نوع المخطوط: ابحاث

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

الموضوعات :

Sajda .S. Affat 1

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

تاريخ الإرسال : 26 الخميس , ذو الحجة, 1442 تاريخ التأكيد : 09 الخميس , رجب, 1443 تاريخ الإصدار : 12 الخميس , ذو القعدة, 1444

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

ملخص المقالة :

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)%.

المصادر:


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