Title : ( Preconcentration of thallium (III) and speciation of thallium (1) and (III) by single drop micro extraction using dicyclohexano-18-crown-6 and their determination by electrothermal atomic absorption spectrometry )
Authors: Mahmod CHamsaz , Mohammad Hossein Arbab Zavar , samira mohajer , Abolfazl Darroudi ,
Full TextAbstract
Single drop micro extraction (SDME) in combination with electrothermal atomic absorption spectroscopy has been used to preconcentrate and determine thallium (III) ions followed by speciation of thallium (I) and (III). An aqueous sample of thallium containing picric acid as a counter ion at pH 6 was extracted into micro drop of nitrobenzene containing Dicyclohexn-18-crown-6 as complexing agent. The extracted micro drop was injected into a graphite furnace and accordingly thallium (III) was determined with a sensitivity of 0.3 ng ml-1 and detection limit of 1.1 ng ml-1. The calibration curve was linear in the range of 1.1-32 ng.
Keywords
, thallium, single drop micro extraction, electro thermal atomic absorption spectrometry, crown ether (Dicyclohexano-18– crown– 6), picric acid
@inproceedings{paperid:1017815,
author = {CHamsaz, Mahmod and Arbab Zavar, Mohammad Hossein and Mohajer, Samira and Darroudi, Abolfazl},
title = {Preconcentration of thallium (III) and speciation of thallium (1) and (III) by single drop micro extraction using dicyclohexano-18-crown-6 and their determination by electrothermal atomic absorption spectrometry},
booktitle = {17th Iranian Seminar of Analytical Chemistry},
year = {2010},
location = {کاشان, IRAN},
keywords = {thallium; single drop micro extraction; electro thermal atomic absorption spectrometry; crown ether (Dicyclohexano-18– crown– 6); picric acid},
}
%0 Conference Proceedings
%T Preconcentration of thallium (III) and speciation of thallium (1) and (III) by single drop micro extraction using dicyclohexano-18-crown-6 and their determination by electrothermal atomic absorption spectrometry
%A CHamsaz, Mahmod
%A Arbab Zavar, Mohammad Hossein
%A Mohajer, Samira
%A Darroudi, Abolfazl
%J 17th Iranian Seminar of Analytical Chemistry
%D 2010
