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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.51A [2012] >
IJC-A Vol.51A(06) [June 2012] >
| Title: | Cold induced aggregation microextraction with an ionic liquid for trace determination of cadmium and lead in water samples |
| Authors: | Shamsipur, Mojtaba
Ramezani, Majid
Beigi, Ali Akbar Miran
Poursaberi, Tahereh |
| Keywords: | Analytical chemistry
Extraction
Microextraction
Cold induced aggregation microextraction
Flame atomic absorption spectrometry
Ionic liquids
Imidazolium ionic liquids
Hexafluorophosphates
Cadmium
Lead
Water Analysis |
| Issue Date: | Jun-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Cold induced aggregation microextraction
(CIAME) with an ionic liquid has been used as a rapid and simple method for determination of trace amounts of cadmium and lead by
sequential analysis with flame atomic absorption spectrometry. In this study,
cadmium and lead have been complexed with
O, O-diethyldithiophosphate as chelating agent in a solution containing Triton
X-114 and sodium hexafluorophosphate, and then extracted into an ionic liquid. The
effect of various parameters on extraction efficiency such as amounts of [C6MIM][PF6]
and NaPF6, pH of solution,
extraction time, temperature and complexing agent concentration have been
optimized. Under the optimized conditions, the detection limits are 0.12 µg L-1
and 1.61µg L-1, relative standard deviation 2.4 % and 2.7 % and
enrichment factor 70 and 67 for cadmium and lead, respectively. The proposed method
has been successfully applied for analysis of cadmium and lead in certified
reference material and various water samples. |
| Page(s): | 825-829 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Source: | IJC-A Vol.51A(06) [June 2012]
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