DOI QR코드

DOI QR Code

Preconcentration and Determination of Trace Copper(II) and Lead(II) in Aqueous Solutions by Adsorption on Ca-Alginate Bead

알긴산칼슘 비드 상 흡착에 의한 흔적량 구리(II)와 납(II)의 동시 농축 및 정량

  • Published : 2004.12.20

Abstract

The preconcentration and determination of trace Cu(II) and Pb(II) on calcium alginate beads in aqueous solution were studied. A calcium alginate beads were prepared by adding an alginic acid to sample solution contained Ca(II). Some following conditions were optimized: the pH of sample solution, amount of alginic acid, and stirring time for effective adsorption; the type and concentration of acid, and sonication time in an ultrasonic vibrator for the perfect de-sorption. A sample solution was prepared with Cu(II) and Pb(II) in DI water. And Ca(II) and ethanol was added into the sample solution. The pH of the final sample solution was controlled with buffer solution. The alginic acid were dispersed in the sample solution by a magnetic stirrer. This mixture was stored in room temperature for 30 min to form a calcium alginate. After the beads were filtered and washed on a membrane filter, the analytes were redissolved from the beads by an ultrasonic vibration of 10 minutes in 1.0M $HNO_3$ solution. The effect of diverse ions on the adsorption of analytes were studied. This procedure was applied for the analysis of two real samples. The recoveries in spiked samples were $90.4{\sim}104.3%$ for analytes.

Keywords

Adsorption;Preconcentration;Calcium Alginate Bead;Copper(II);Lead(II)

References

  1. B. Volesky, TIBTECH, 1987, 5, 96. https://doi.org/10.1016/0167-7799(87)90027-8
  2. Z. R. Holan, B. Volesky and I. Prasetyo, Biotech. andBioeng., 1993, 41, 819. https://doi.org/10.1002/bit.260410808
  3. A. Martinsen, I. Storrø and G. Skjak-Broek, Biotech.and Bioeng., 1992, 39, 186. https://doi.org/10.1002/bit.260390210
  4. M. Manuela Arajo and J. A. Teixeira, Intl. Biodet. &Biodeg., 1997, 40(1), 63. https://doi.org/10.1016/S0964-8305(97)00064-4
  5. J. E. Gregor, E. Fenton, G. Brokenshire, P. Van DenBrink and B. O'sullivan, Wat. Res., 1996, 30(6), 1319. https://doi.org/10.1016/0043-1354(95)00194-8
  6. L. K. Jang, S. L. Lopez, S. I. Eastman and P. Pryfogle,Biotech. and Bioeng., 1991, 37, 266. https://doi.org/10.1002/bit.260370309
  7. K. M. Khoo and Y. P. Ting, Biotech. and Bioeng., 2001,8, 51.
  8. L. K. Jang, Biotech. and Bioeng., 1994, 43, 183. https://doi.org/10.1002/bit.260430212
  9. C. Jeon, J. Y. Park and Y. J. Yoo, Wat. Res., 2002, 36, 1814. https://doi.org/10.1016/S0043-1354(01)00389-X
  10. K. Yasuhiro, S. Junichi and A. Satoru, Reactive & Functional Polymers, 1998, 36, 197. https://doi.org/10.1016/S1381-5148(97)00103-X
  11. H. Zheng, Carbohydrate Research, 1997, 302, 97. https://doi.org/10.1016/S0008-6215(97)00114-6
  12. J. M. Brady and J. M. Tobin, Enzyme MicrobiologyTech., 1994, 16, 671. https://doi.org/10.1016/0141-0229(94)90088-4
  13. J. W. Lee, R. D. Ashby and D. F. Day, CarbohydratePolymer, 1996, 29, 337. https://doi.org/10.1016/S0144-8617(96)00017-3
  14. D. Kratochvil, E. Fourest and B. Volesky, Biotech.Lett., 1995, 17, 777. https://doi.org/10.1007/BF00130368
  15. M. L. Apel and A. E. Torma, Can. J. Chem. Eng.,1993, 71, 652. https://doi.org/10.1002/cjce.5450710419
  16. Z. R. Holan, B. Volesky and I. Prasetyo, Biotech. andBioeng., 1993, 41, 819. https://doi.org/10.1002/bit.260410808
  17. C. Jeon, J. Y. Park and Y. J. Yoo, Biochem. Eng. J.,2002, 11, 159. https://doi.org/10.1016/S1369-703X(02)00020-7