|تعداد مشاهده مقاله||111,529,440|
|تعداد دریافت فایل اصل مقاله||86,162,970|
Evaluation of thallium rate in soil after dispersive liquid-liquid micro-extraction
|مقاله 3، دوره 20، شماره 1، فروردین 2015، صفحه 23-28 اصل مقاله (83.3 K)|
|نوع مقاله: Research Paper|
|شناسه دیجیتال (DOI): 10.22059/jdesert.2015.54079|
|Seyyed Behnam Abdollahi Boraei* 1؛ Daryoush Afzali2|
|1Materials Engineering Department, Faculty of Modern Science & Technologies, University of Advanced Technology, Kerman, Iran|
|2Chemistry Department, Faculty of Modern Science & Technologies, University of Advanced Technology, Kerman, Iran|
|Thallium is widely found in nature, but the only inorganic stones full of this element are crookesite and lorandit. It is|
also found in pyrites of copper, lead and inorganic stones. The element and its compositions are toxic and harmful to the
environment; therefore, its application requires caution and further research. It is important to develop sensitive and
accurate analytical methods to determine trace levels of thallium in environmental and real samples. In this research,
dispersive liquid-liquid microextraction based on solidification of floating organic drop as a sample preparation method
was used for separation and preconcentration of ultra-trace amounts of thallium in soil samples prior to graphite-furnace
atomic-absorption spectrometry. Investigated effective parameters on extraction include pH, the amount of chelating
agent, type and volume of extraction solvent and extraction time. Under optimum conditions, the calibration curve was
linear in the range of 0.2-10.0 ng mL−1 of thallium in the original solution, with limit of detection of 0.03 ng mL−1. The
relative standard deviation (RSD) for ten replicated determinations of thallium ion at 5.0 ng mL−1 concentration level was
calculated as 3.3%. The proposed method was successfully applied to the determination of thallium in soil samples.
|Soil samples؛ thallium determination؛ dispersive liquid-liquid microextraction؛ graphite-furnace atomicabsorption spectrometry|
Afzali, D., B. Bahadori, F. Fathirad, 2013. Ultrasoundassisted
emulsification/microextraction based on
solidification of trace amounts of thallium prior to
graphite furnace atomic absorption spectrometry
determination. Toxicological & Environmental
Chemistry, 95; 1080-1089.
Asami, T., C. Mizui, T. Shimada, M. Kubota, 1996.
Determination of thallium in soils by flame atomic
absorption spectrometry. Fresenius Journal of
Analytical Chemistry, 356; 348-351.
Arzate, S.G., A. Santamaria, 1998. Thallium toxicity.
Toxicology Letters, 99; 1-13.
Breimer, R.F., J. Vogel, C.G. Ottow, 1989. Fluorine
contamination of soils and earthworms (Lumbricus
spp.) near a site of long-term industrial emission in
southern Germany. Biology and Fertility of Soils, 7;
Chamsaz, M., M.H. Arbab-Zavar, A. Darroudi, T. Salehi,
2009. Preconcentration of thallium (I) by single drop
microextraction with electrothermal atomic absorption
spectroscopy detection using dicyclohexano-18-crown-
6 as extractant system. Journal of Hazardous Materials,
Dadfarnia, S., T. Assadollahi, A.M. Haji Shabani, 2007.
Speciation and determination of thallium by on-line
microcolumn separation/preconcentration by flow
injection–flame atomic absorption spectrometry using
immobilized oxine as sorbent. Journal of Hazardous
Materials, 148; 446-452.
Dadfarnia, S., A.M. Haji Shabani, 2010. Recent
development in liquid phase microextraction for
determination of trace level concentration of metals.
Analytica Chimica Acta, 658; 107-119.
Escudero, L.B., R.G. Wuilloud, R.A. Olsina. 2013.
Sensitive determination of thallium species in drinking
and natural water by ionic liquid-assisted ion-pairing
liquid–liquid microextraction and inductively coupled
plasma mass spectrometry. Journal of Hazardous
Materials, 244–245; 380-386.4
Gao, J., G. Gu, X. Liu, T. Chen, 1985. Spectrophotometric
determination of trace amounts of thallium with 7-(4,5-
sulphonic acid. Talanta, 32; 1072-1073.
Gworek, B., 1992. Inactivation of cadmium in
contaminated soils using synthetic zeolites.
Environmental pollution, 75; 269-271.
Hawley, G.G., R.J. Lewis, 1993. Condensed Chemical
Dictionary. 12th ed., Van Nostrand, New York.
Jamshidi, R., D. Afzali, Z. Afzali, 2011. Determination
trace amounts of thallium after separation
andpreconcentration onto nanoclay loaded with 1-(2-
pyridylazo)-2-naphthol as a new sorbent. International
Journal of Environmental Analytical Chemistry, 91;
Janssen, M.P., R. Hogervorst, 1993. Metal accumulation
in soil arthropods in relation to micro-nutrients.
Environmental Pollution, 79; 181-189.
Lee, G., H.M. Lee, Y.R. Uhm, M.K. Lee, C. Rhee, 2008.
Square-wave voltammetric determination of thallium
using surface modified thick-film graphite electrode
with Bi nanopowder. Electrochemistry
Communications. 10; 1920-1923.
Nukatsuka, I., H. Seitoh, K. Ohzeki, 2004. Solid-phase
extraction with slurry injection of the resin into ETAAS
for trace determination of thallium in natural water.
Microchimica Acta, 148; 177-182.
Otruba, V., J. Stepankova, J., Sommer, 1994. Selective
preconcentration of thallium on modified silica gel for
its determination by flame emission and absorption
spectrometry. Talanta, 41; 1185-1190.
Regueiro, J., M. Llompart, C. Garcia-Jares, J.C. Garcia-
Monteagudo, R. Cela, 2008. Ultrasound- assisted
emulsification–microextraction of emergent
contaminants and pesticides in environmental waters.
Journal of Chromatography A, 1190; 27-38.
تعداد مشاهده مقاله: 1,849
تعداد دریافت فایل اصل مقاله: 1,333