Optimization and application of homogeneous liquid-liquid extraction in preconcentration of copper (II) in a ternary solvent system
(2009) In Journal of Hazardous Materials 161(2-3). p.1535-1543- Abstract
- In this study a homogeneous liquid-liquid extraction based on the Ph-dependent phase-separation process was investigated using a ternary solvent system (water-acetic acid-chloroform) for the preconcentration of Cu2+ ions. 8-Hydroxy quinoline was used as the chelating agent prior to its extraction. Flame atomic absorption spectro photometry using acetylene-air flame was used for the quantitation of analyte after preconcentration. The effect of various experimental parameters in extraction step was investigated using two optimization methods, one variable at a time and central composite design. The experimental design was done at five levels of operating parameters. Nearly the same optimized results were obtained using both methods: sample... (More)
- In this study a homogeneous liquid-liquid extraction based on the Ph-dependent phase-separation process was investigated using a ternary solvent system (water-acetic acid-chloroform) for the preconcentration of Cu2+ ions. 8-Hydroxy quinoline was used as the chelating agent prior to its extraction. Flame atomic absorption spectro photometry using acetylene-air flame was used for the quantitation of analyte after preconcentration. The effect of various experimental parameters in extraction step was investigated using two optimization methods, one variable at a time and central composite design. The experimental design was done at five levels of operating parameters. Nearly the same optimized results were obtained using both methods: sample size, 5 mL: volume of NaOH 10 M, 2 mL; chloroform volume, 300 mu L; 8-hydroxy quinoline concentration more than 0.01 M and Salt amount did not affect the extraction significantly. Under the optimum conditions the calibration graph was linear over the range 10-2000 mu g L-1. The relative standard deviation was 7.6% for six repeated determinations (C = 500 mu g L-1). Furthermore, the limit of detection (S/N = 3) and limit of quantification (S/N = 10) of the method were obtained as 1.74 and 6 mu g L-1, respectively. (C) 2008 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1312771
- author
- Farajzadeh, Mir Ali ; Bahram, Morteza ; Zorita, Saioa LU and Mehr, Behzad Ghorbani
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Atomic absorption spectrophotometry, Central composite design, time, One variable at a, Homogeneous liquid-liquid extraction, Optimization
- in
- Journal of Hazardous Materials
- volume
- 161
- issue
- 2-3
- pages
- 1535 - 1543
- publisher
- Elsevier
- external identifiers
-
- wos:000262292400126
- scopus:56249131426
- ISSN
- 1873-3336
- DOI
- 10.1016/j.jhazmat.2008.05.041
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)
- id
- 347a4c50-f3ac-4199-bac4-e9f2bc7c14c5 (old id 1312771)
- date added to LUP
- 2016-04-01 11:49:48
- date last changed
- 2025-04-04 14:34:56
@article{347a4c50-f3ac-4199-bac4-e9f2bc7c14c5,
abstract = {{In this study a homogeneous liquid-liquid extraction based on the Ph-dependent phase-separation process was investigated using a ternary solvent system (water-acetic acid-chloroform) for the preconcentration of Cu2+ ions. 8-Hydroxy quinoline was used as the chelating agent prior to its extraction. Flame atomic absorption spectro photometry using acetylene-air flame was used for the quantitation of analyte after preconcentration. The effect of various experimental parameters in extraction step was investigated using two optimization methods, one variable at a time and central composite design. The experimental design was done at five levels of operating parameters. Nearly the same optimized results were obtained using both methods: sample size, 5 mL: volume of NaOH 10 M, 2 mL; chloroform volume, 300 mu L; 8-hydroxy quinoline concentration more than 0.01 M and Salt amount did not affect the extraction significantly. Under the optimum conditions the calibration graph was linear over the range 10-2000 mu g L-1. The relative standard deviation was 7.6% for six repeated determinations (C = 500 mu g L-1). Furthermore, the limit of detection (S/N = 3) and limit of quantification (S/N = 10) of the method were obtained as 1.74 and 6 mu g L-1, respectively. (C) 2008 Elsevier B.V. All rights reserved.}},
author = {{Farajzadeh, Mir Ali and Bahram, Morteza and Zorita, Saioa and Mehr, Behzad Ghorbani}},
issn = {{1873-3336}},
keywords = {{Atomic absorption spectrophotometry; Central composite design; time; One variable at a; Homogeneous liquid-liquid extraction; Optimization}},
language = {{eng}},
number = {{2-3}},
pages = {{1535--1543}},
publisher = {{Elsevier}},
series = {{Journal of Hazardous Materials}},
title = {{Optimization and application of homogeneous liquid-liquid extraction in preconcentration of copper (II) in a ternary solvent system}},
url = {{http://dx.doi.org/10.1016/j.jhazmat.2008.05.041}},
doi = {{10.1016/j.jhazmat.2008.05.041}},
volume = {{161}},
year = {{2009}},
}