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Sereshti, H., Eskandarpour, N., Samadi, S., Aliakbarzadeh, Gh.. (1393). Investigation on Dracaena Sanderiana PhytoremeDiation Ability for Hg and Cd using Multivariate Optimized Task Specific Ionic liquid-based Dispersive liquid-liquid Microextraction. , 8(4), 1075-1084. doi: 10.22059/ijer.2014.801
H. Sereshti; N. Eskandarpour; S. Samadi; Gh. Aliakbarzadeh. "Investigation on Dracaena Sanderiana PhytoremeDiation Ability for Hg and Cd using Multivariate Optimized Task Specific Ionic liquid-based Dispersive liquid-liquid Microextraction". , 8, 4, 1393, 1075-1084. doi: 10.22059/ijer.2014.801
Sereshti, H., Eskandarpour, N., Samadi, S., Aliakbarzadeh, Gh.. (1393). 'Investigation on Dracaena Sanderiana PhytoremeDiation Ability for Hg and Cd using Multivariate Optimized Task Specific Ionic liquid-based Dispersive liquid-liquid Microextraction', , 8(4), pp. 1075-1084. doi: 10.22059/ijer.2014.801
Sereshti, H., Eskandarpour, N., Samadi, S., Aliakbarzadeh, Gh.. Investigation on Dracaena Sanderiana PhytoremeDiation Ability for Hg and Cd using Multivariate Optimized Task Specific Ionic liquid-based Dispersive liquid-liquid Microextraction. , 1393; 8(4): 1075-1084. doi: 10.22059/ijer.2014.801

Investigation on Dracaena Sanderiana PhytoremeDiation Ability for Hg and Cd using Multivariate Optimized Task Specific Ionic liquid-based Dispersive liquid-liquid Microextraction

International Journal of Environmental Research
مقاله 23، دوره 8، شماره 4، دی 2014، صفحه 1075-1084    اصل مقاله (446.84 K)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22059/ijer.2014.801
نویسندگان
H. Sereshti* ؛ N. Eskandarpour؛ S. Samadi؛ Gh. Aliakbarzadeh
Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran
چکیده
The task specific ionic liquid (TSIL), tricaprylmethylammonium thiosalicylate ([A336][TS]),
was synthesized, characterized and subsequently used as extraction solvent in dispersive liquid-liquid
microextraction (DLLME) technique. The TSIL-DLLME method followed by inductively coupled plasmaatomic
emission spectrometry (ICP-AES) was applied to determination of trace mercury (Hg) and cadmium
(Cd) in aqueous sample solutions. The significant parameters of the extraction process were optimized using
a response surface methodology. Under the optimal conditions (pH, 6.50; concentration of TSIL, 47.50 mg m/
L; and salt concentration, 8.50 % (w/v)), the analytical figures of merit for Hg and Cd were obtained as: LDR,
1-5000 μg/L; determination coefficients (R2), 0.9990 and 0.9991; LODs (limit of detections), 0.28 and 0.22 μg/
L; RSD, 1.1% and 1.0%, respectively. In addition, the removal of Hg2+ and Cd2+ ions by the plant Dracaena
sanderiana was investigated using the developed method. The Hg and Cd uptake and storage by the plant from
contaminated waters was also evaluated to be approximately equal to 10.32 and 30.90 mg/kg, respectively.
The relative recoveries of Hg and Cd were 97.50% and 92.37%, respectively.
کلیدواژه‌ها
Dracaena sanderianam؛ Cadmium؛ mercury؛ ICP-AES
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