For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Validity of Molecular Dynamics Heat Transfer by Quantum Mechanics
p.803
Fabrication of Super Paramagnetic Nanoparticles by Sol-Gel Method for Water Purification
p.808
Molecular Dynamics Simulation of Nanocluster Formation in a Supersonic Nano Nozzle Fabricated by Anodizing the Aluminum
p.813
Modification of Nanoclay Systems: An Approach to Stabilizing Drilling Fluids
p.818
Preconcentration and Determination of Lead by Solidification of Floated Organic Drop Coupled with Nanodrop Spectrophotometry
p.825
Experimental Manipulation of Gold Nano-Particles by Atomic Force Microscope and Investigating Effect of Various Working Parameters
p.831
Optical Properties of Synthesized Fe3O4 Nanoparticles Doped in Nematic Liquid Crystal under Electric Field
p.836
Mitigation of Fine Particles Migration in Deep Bed Filters Treated by a Nanofluid Slug: An Experimental Study
p.841
Preparation of Nano Crystalline Titanium Dioxide by Microwave Hydrothermal Method
p.846

Preconcentration and Determination of Lead by Solidification of Floated Organic Drop Coupled with Nanodrop Spectrophotometry

Article Preview

Abstract:

The liquid-phase microextraction based on solidification of floating organic microdrop coupled with UV-visible spectrophotometer for preconcentration and determination of lead in the aqueous samples has been developed. In this technique, 20μL of 1-undecanol containing dithizone as the chelating agent (10-3 mol L-1) was transferred to the water samples containing lead ions, and the solution was stirred for 25 min. The sample vial was cooled in an ice bath for 5 min. The solidified extract was transferred into a conical vial where it melted immediately, and then the organic phase was analyzed by Nanodrop spectrophotometer. Factors that influence the extraction and complex formation, such as pH, concentration of dithizone, extraction time, effect of ionic strenght, temperature and stirring rate were optimized. Under the optimized conditions, a preconcentration factor of 356, detection limit of 0.006 μgL-1, limit of quantification 0.018 μgL-1 and a good relative standard deviation of 2.1% were obtained. The procedure was applied to sea water, mineral water and well water.

You might also be interested in these eBooks
Ultrafine Grained and Nano-Structured Materials IV View Preview

Info:

Periodical:

Advanced Materials Research (Volume 829)

Pages:

825-830

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.829.825

Citation:

Cite this paper

Online since:

November 2013

Authors:

Ali Mazloomifar, Nafiseh Khatibi*

Keywords:

Dithizone, Lead, Nanodrop Spectrophotometry, Solidified Floating Organic Drop

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] J.J. chisholm , a novel separation/preconcentration system based on SFODME for determination of lead; sci. Am. 229 (1971) 15.

Google Scholar

[2] M. O . Lucono , M. F . Silva R.A. Olsina, L. P . Fernandez, a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS; Talanta 51 (2000) 123. Lewis Michigan, (1987).

Google Scholar

[3] C. Baird, a novel separation/preconcentration system based on SFODME for determination of lead; sci. Am. 229 (1971) 15. Environmental Chemistry, second ed, W.H. Freeman and company, 1999, p, 397.

Google Scholar

[4] D.S.K. Peker , O. Turkoglu , a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS ; J. Hazard. Mater. 143 (2007) 555.

Google Scholar

[5] P. S . More, A.D. sawant , a novel separation/preconcentration system based on SFODME for determination of lead; Anal. Lett. 27 (1994) 1737.

Google Scholar

[6] J. Wang, E. H . Hasen , a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS ; J . Anal. Atom. Spectrom. 17 (2002) 1284.

Google Scholar

[7] J. Chen,S. Xia, XWu, K. Fang.W. Liu , a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS; Talanta . 67 (2005) 992.

Google Scholar

[8] M. A jeanot , F.F. Cantwell , a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS; Anal. Chem. 68 (1996) 1817.

Google Scholar

[9] L. xia , B. Hu, Z. Jiang, T. Wu, Y. Liang a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS; Anal. Chem. 76(2004)2910.

Google Scholar

[10] C.L. Artthur, J. Pawliszyne, a novel separation/preconcentration system based on SFODME for determination of lead; Anal . Chem. 62 (1990)2145.

Google Scholar

[11] T. Kumazawa , X. P. Lee, K. sato, O. Suzuki, a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS; Anal. Chem. Acta 492(2003)249.

Google Scholar

[12] M. Rezaee , Y . Assadi, M. Anbia, M.R. Milani Hosseini, M. R Jamali, a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS ; Anal. Chem. Acta 588 (2007) 305.

Google Scholar

[13] S. Berijani, Y . Assadi, M.R. Milani hosseini, E. Aghaee, a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS; J. Chromatoger. A1123 (2006) 1.

Google Scholar

[14] E. Zeini Jahromi , A. Bidari, Y . Assadi, M.R. Milani Hosseini, M.R. Jamali, a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS ; Anal. Chem. Acta 585 (2007) 305.

DOI: 10.1016/j.aca.2007.01.007

Google Scholar

[15] M.R. Khalili zanjani, Y. Yamini, S. Shariati, J.A. Jonsson, a novel separation/preconcentration system based on SFODME for determination of lead by GFAAS; Anal. Chim. Acta 585 (2007) 286.

Google Scholar

[16] A. Columé, S. Gárdenas, M. Gallego , M. Valcárc, , development of liquid phase microextraction method based on SFODME for extraction of organochlorin pestisides in water samples, Talanta 54 (2001) 943.

Google Scholar

[17] E. Psillakis, N. Kalgerakis, development of liquid phase microextraction method based on SFODME for extraction of organochlorin pestisides in water samples; J. Chromatoger. A 907 (2001)211.

Google Scholar

[18] L.S. de Jager, A.R.J. Andrew, development of liquid phase microextraction method based on SFODME for extraction and preconcentration of organochlorin pestisides in water samples; J. Chromatoger . A911 (2001)97.

Google Scholar

[19] L. Zhao, H.K. Lee, development of liquid phase microextraction method based on SFODME for extraction of organochlorin pestisides in water samples; J. Chromatoger. A919 (2001) 381.

Google Scholar

[20] E. Psillaakis, N. Kalogerakis, development of liquid phase microextraction method based on SFODME for extraction and preconcentration of organochlorin pestisides in water samples; Trenda Anal. Chem. 21(2002)53.

Google Scholar

[21] M.C. López-Blanco-Cid, B. Cancho-Grand, J. Simal-Gándara, development of liquid phase microextraction method based on SFODME for extraction of organochlorin pestisides in water samples. J. Chromatoger. A984(2003) 245.

DOI: 10.1016/s0021-9673(02)01873-3

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.