H-point standard addition method for simultaneous determination of cobalt(II) and zinc(II) ions

详细信息    查看全文

• 作者：H. R. Pouretedal (1)
  M. Asefi (2)
  
• 关键词：H ; point standard addition method ; Zinc ; Cobalt ; Methylthymol blue
• 刊名：Journal of the Iranian Chemical Society
• 出版年：2007
• 出版时间：December 2007
• 年：2007
• 卷：4
• 期：4
• 页码：503-509
• 全文大小：189KB
• 参考文献：1. F. Bosch Reig, P. Campins Falco, Analyst 113 (1988) 1011.
  2. P. Campins Falco, F. Bosch Reig, A. Molina Benet, Fresenius J. Anal. Chem. 338 (1990) 16.
  3. A. Safavi, H. Abdollahi, F. Sedghatpour, M.R. Hormozi Nezhad, Talanta 59 (2003) 147.
  4. A. Afkhami, A.R. Zarei, Anal. Sci. 19 (2003) 917.
  5. H. Eskandari, Y. Kamali, Anal. Sci. 20 (2004) 1095.
  6. M. Hasani, L. Yaghoubi, H. Abdollahi, Talanta 68 (2006) 1528.
  7. P. Campins Falco, F. Bosch Reig, J. Verdu Andres, Talanta 39 (1992) 1.
  8. P. Campins Falco, F. Bosch Reig, J. Verdu Andres, Anal. Chim. Acta 270 (1992) 253.
  9. F. Bosch Reig, J. Verdu Andres, P. Campins Falco, C. Molins Legua, Talanta 41 (1994) 39.
  10. F. Bosch Reig, P. Campins Falco, J. Verdu Andres, J. Chromatogr. A 726 (1996) 57.
  11. J. Verdu Andres, F. Bosch Reig, P. Compins Falco, Chromatographia 42 (1996) 283.
  12. F. Bosch Reig, P. Campins Falco, A. Sevillano Cabeza, R. Herraez Hemandez, C. Molins Legua, Anal. Chem. 63 (1991) 2424.
  13. P. Campins Falco, J. Verdu Andres, F. Bosch Reig, Analyst 119 (1994) 2123.
  14. F. Bosch Reig, P. Campins Falco, J. Verdu Andres, Anal. Chim. Acta 283 (1993) 831.
  15. R. Maties, F. Jimenez, J.J. Arias, Anal. Lett. 30 (1997) 2059.
  16. I.T.T. Davis, The Clinical Significance of the Essential Biological Metals, Thomas, Springfield, 1972.
  17. R. Caprioli, S. Torcini, J. Chromatogr. A 640 (1993) 365.
  18. M. Garcia-Vargas, M.P. Hernandez-Artiga, J.A. Perez-Bustamante, Anal. Chim. Acta 157 (1984) 363.
  19. M. Jones, G.F. Kirkbright, L. Ranson, T.S. West, Anal. Chim. Acta 63 (1973) 210.
  20. A.W. Morris, Anal. Chim. Acta 42 (1968) 397.
  21. Z.T. Jiang, J.C. Yu, H.Y. Liu, Anal. Sci. 21 (2005) 851.
  22. M.A. Belarra, C. Crespo, M.P. Mart铆nez-Garbayo, M. Resano, Spectrochim. Acta B 58 (2003) 1847.
  23. K.S. Rao, T. Balaji, T.P. Rao, Y. Babu, G.R.K. Naidu, Spectrochim. Acta B 57 (2002) 1333.
  24. J. Ghasemi, S. Ahmadi, K. Torkestani, Anal. Chim. Acta 487 (2003) 181.
  25. A.I. Vogel, Textbook of Quantitative Inorganic Analysis, Longman, London, 1989.
  26. P. Compins Falco, F. Bosch Reig, F. Blasco Gomez, Talanta 47 (1998) 193.
  27. H. Eskandari, A.G. Saghesloo, Anal. Sci. 19 (2003) 1531.
  28. A. Afkhami, M. Bahram, A.R. Zarei, Microchem. Acta 148 (2004) 317.
  
• 作者单位：H. R. Pouretedal (1)
  M. Asefi (2)
  
  1. Chemistry Department, Malek-ashtar University of Technology, Shahin-shahr, I.R. Iran
  2. Islamic Azad University, Shahreza Branch, I.R. Iran
  
• ISSN：1735-2428

文摘

The H-point standard addition method (HPSAM) was applied to the simultaneous determination of zinc(II) and cobalt(II). This method is based on the difference in the absorbance of methylthymol blue complexes of Zn(II) and Co(II) at pH 6 using different wavelength pairs. The results showed that Zn(II) and Co(II) can be determined simultaneously with concentration ratios of 20:1 and 1:7.5. Under working conditions, the proposed method was successfully applied to the simultaneous determination of zinc and cobalt in synthetic, drinking water and vitamin samples.