Bulletin of the Korean Chemical Society

  • 제25권2호
  • /
  • Pages.263-266
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  • 2004
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Study on Solid Phase Extraction and Spectrophotometric Determination of Vanadium with 2-(2-Quinolylazo)-5-Diethylaminophenol

  • Hu, Qiu-Fen (Department of Chemistry, Yunnan University, Department of Chemistry, Yuxi Teacher's College) ;
  • Yang, Guan-Gyu (Department of Chemistry, Yunnan University) ;
  • Huang, Zhang-Jie (Department of Chemistry, Yunnan University) ;
  • Yin, Jia-Yuan (Department of Chemistry, Yunnan University)
  • 발행 : 2004.02.20
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초록

A sensitive, selective and rapid method has been developed for the determination ${\mu}$g/L level of vanadium ion based on the rapid reaction of vanadium(V) with 2-(2-quinolylazo)-5-diethylaminophenol (QADEAP) and the solid phase extraction of the colored chelate with $C_{18}$ cartridge. The QADEAP reacts with V(V) in the presence of citric acid-sodium hydroxide buffer solution (pH = 3.5) and cetyl trimethylammonium bromide (CTMAB) medium to form a violet chelate of a molar ratio 1 : 2 (V(V) to QADEAP). This chelate was enriched by solid phase extraction with $C_{18}$cartridge and the enrichment factor of 50 was obtained by elution of the chelates from the cartridge with ethanol. The molar absorptivity of the chelate is $1.28 {\times}10^5L\;mol^{-1}cm^{-1}$ at 590 nm in the measured solution. Beer's law is obeyed in the range of 0.01-0.6 ${\mu}$g/mL. The detection limit is 0.04 ${\mu}$g/L in the original samples. This method was applied to the determination of vanadium(V) in water and biological samples with good results.

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참고문헌

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피인용 문헌

  1. A Rapid, Simple, and Sensitive Spectrophotometric Determination of Traces of Vanadium (V) in Foodstuffs, Alloy Steels, and Pharmaceutical, Water, Soil, and Urine Samples vol.41, pp.6, 2008, https://doi.org/10.1080/00032710801978517
  2. A spectrophotometric assay method for vanadium in biological and environmental samples using 2,4-dinitrophenylhydrazine with imipramine hydrochloride vol.184, pp.1, 2012, https://doi.org/10.1007/s10661-011-1957-2
  3. Determination of vanadium (V) employing a new combined single drop micro-extraction and diffuse reflectance Fourier transform infrared spectroscopy technique vol.92, pp.1, 2012, https://doi.org/10.1080/03067310903410998
  4. Determination and Quantification of Vanadium(V) in Environmental Samples Using Chemically Modified Chitosan Sorbent vol.04, pp.02, 2014, https://doi.org/10.4236/jeas.2014.42006
  5. Determination of vanadium (V) in various environmental and biological samples using spectrophotometry vol.130, pp.1-3, 2007, https://doi.org/10.1007/s10661-007-9663-9
  6. Determination of trace amounts of vanadium by UV–vis spectrophotometric after separation and preconcentration with modified natural clinoptilolite as a new sorbent vol.75, pp.5, 2008, https://doi.org/10.1016/j.talanta.2008.01.045
  7. A sensitive method for determining total vanadium in water samples using colorimetric-solid-phase extraction-fiber optic reflectance spectroscopy vol.172, pp.2, 2004, https://doi.org/10.1016/j.jhazmat.2009.07.136
  8. A Highly Sensitive and Selective Spectrofluorimetric Method for the Determination of Vanadium at Pico-Trace Levels in Some Real, Environmental, Biological, Soil and Food Samples Using 2-(α-Pyrid vol.10, pp.11, 2004, https://doi.org/10.4236/ajac.2019.1011038