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Arabi, F., Emami Meibodi, A., Aflaki, F. (2018). Determination of Zinc Ions in Environmental Samples by Dispersive Liquid- Liquid Micro Extraction and Atomic Absorption Spectroscopy. Journal of Chemical Health Risks, 2(3), -. doi: 10.22034/jchr.2018.544000
F. Arabi; A. Emami Meibodi; F. Aflaki. "Determination of Zinc Ions in Environmental Samples by Dispersive Liquid- Liquid Micro Extraction and Atomic Absorption Spectroscopy". Journal of Chemical Health Risks, 2, 3, 2018, -. doi: 10.22034/jchr.2018.544000
Arabi, F., Emami Meibodi, A., Aflaki, F. (2018). 'Determination of Zinc Ions in Environmental Samples by Dispersive Liquid- Liquid Micro Extraction and Atomic Absorption Spectroscopy', Journal of Chemical Health Risks, 2(3), pp. -. doi: 10.22034/jchr.2018.544000
Arabi, F., Emami Meibodi, A., Aflaki, F. Determination of Zinc Ions in Environmental Samples by Dispersive Liquid- Liquid Micro Extraction and Atomic Absorption Spectroscopy. Journal of Chemical Health Risks, 2018; 2(3): -. doi: 10.22034/jchr.2018.544000

Determination of Zinc Ions in Environmental Samples by Dispersive Liquid- Liquid Micro Extraction and Atomic Absorption Spectroscopy

Article 4, Volume 2, Issue 3, Autumn 2012  XML PDF (381.76 K)
DOI: 10.22034/jchr.2018.544000
Authors
F. Arabi ; A. Emami Meibodi; F. Aflaki
Receive Date: 08 January 2013,  Revise Date: 20 January 2019,  Accept Date: 29 October 2018 
Abstract
In this work preconcentration of the Zn ions was investigated in water sample by Dispersive liquid- liquid micro extraction (DLLME) using chloroform as an extraction solvent, methanol as a disperser solvent and 8-Hydroxyquinoline as a chelating agent. The determination of extracted ions was done by graphite furnace atomic absorption spectrometry. The influence of various analytical parameters including pH, extraction and disperser solvent type and volume and concentration of the chelating agent on the extraction efficiency of analyses was investigated. After extraction, the enrichment factor was 26 and the detection limit of the method was 0.0033 µg l-1 and the relative standard deviations (R.S.D) for five determinations of 1 ng/ml Zn were 7.41%. 
Keywords
Dispersive liquid- liquid micro extraction (DLLME); Graphite furnace atomic absorption spectrometry; Zinc; Water Samples
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