Please use this identifier to cite or link to this item:
http://essuir.sumdu.edu.ua/handle/123456789/35194
Or use following links to share this resource in social networks:
Tweet
Recommend this item
Title | Liquid-Liquid Microextraction of Vanadyl Porphyrins by Nano-baskets |
Authors |
Mokhtari, B.
Pourabdollah, K. |
ORCID | |
Keywords |
Nano-baskets Microextraction Vanadyl Porphyrins Calixcrown |
Type | Conference Papers |
Date of Issue | 2012 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/35194 |
Publisher | Sumy State University |
License | Copyright not evaluated |
Citation | Mokhtari, B. Liquid-Liquid Microextraction of Vanadyl Porphyrins by Nano-baskets / B. Mokhtari, K. Pourabdollah // Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No3. - 03AET02 |
Abstract |
The novelties of this approach are introducing the self-settled dispersive liquid-liquid microextraction
technique to remove the centrifuging step, conducting the dispersive liquid phase microextraction in complex
organic systems, applicability of water as disperser phase, and nano-extraction of charged porphyrins
by nano-baskets of calixcrown, which act as the settling agents as well as the inclusion ligands. Four proton
di-ionizable diacid conformers of 25,26-bis(carboxymethoxy)calix[4]arene-27,28-crown-3; -crown-4; -
crown-5; and -crown-6 in the cone conformation were synthesized and used. The related parameters including
ligand concentration, volume of water disperser, salt effect, and extraction time were optimized. The
linear range, detection limit (S/N 3) and precision (RSD, n 6) were determined to be 0.2–50, 0.07 μgL−1
and 5.3%, respectively. The established method was applied to determine the target compound in five
samples of live crude oil, were sampled from an Iranian offshore field. Owing to the overall differences
(such as organic media, inclusion extraction, water-soluble ligands, etc), the comparison of the proposed
method with the traditional liquid-liquid microextraction was inapplicable. These results revealed that the
new approach is competitive analytical tool and an alternative of the traditional methods in the crude oil
and related systems.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35194 |
Appears in Collections: |
Наукові видання (ЕлІТ) |
Views

4

6

1

1

14599

1

1

2

11

759555

3

98871

1

50431

394375

1321923

3981
Downloads

14

2

1

1

1

197187

1

394376

1321924

1
Files
File | Size | Format | Downloads |
---|---|---|---|
princon_2012_1_3_67.pdf | 301.19 kB | Adobe PDF | 1913508 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.