View PDF Version
 
DOI: 10.1039/A806593D (Paper) Reference Section for: Analyst, 1998, 123, 2845-2850

The synthesis and applications of a new chromogenic and fluorescence reagent for cobalt(II)

(Note: The full text of this document is currently only available in the PDF Version )

Zuotao Zeng, Roger A. Jewsbury and Zuotao Zeng

Abstract

A new reagent, 5-(4-arsonicphenylazo)-8-(4-toluenesulfonamido)quinoline (APTSQ), was synthesised and its reaction with cobalt(II) and other metal ions was investigated. APTSQ was found to be a sensitive and selective reagent for the spectrophotometric and fluorimetric determination of trace amounts of cobalt. In the presence of cetyltrimethylammonium bromide, Co(II) reacts with APTSQ in basic medium to form a blue–violet complex in a molar ratio of 1:3. The maximum absorbance of the complex is at 582 nm with a molar absorptivity of 1.18×105 l mol–1 cm–1. Beer’s law is obeyed for cobalt concentrations in the range 0–0.5 µg ml–1. The interference of 34 substances was examined. In the presence of H2O2, cobalt reacts with APTSQ in solutions above pH 8.7, forming a product which shows intense fluorescence with λex at 229, 287 and 331 nm and λem at 376 nm. The fluorescence intensity is proportional to concentration of cobalt in the range of 0–25 ng ml–1. A detection limit (S/N = 3) of 0.002 ng ml–1 was obtained. The mechanism of the fluorescence reaction was also investigated. The two proposed methods are precise, sensitive and simple and were applied to the determination of trace amounts of cobalt in mixtures, vitamin B12 and vegetable samples.

References

  1. L. Leonard and R. Lauwerys, Mutat. Res., 1990, 239, 17.
  2. D. Beyersmann and A. Hartwig, Toxicol. Appl. Pharmacol., 1992, 115, 137 CrossRef CAS.
  3. N. Hatori, S. K. Pehrsson, N. Clyne, G. Hansson and C. Hofman-Bang, Biochim. Biophys. Acta, 1993, 1181, 257 CrossRef CAS.
  4. S. Kumagai, Y. Kusaka and S. Goto, Am. Ind. Hyg.. Assoc. J., 1996, 57, 365 CrossRef CAS.
  5. G. Jin, Y. R. Zhu, W. Q. Jiang, B. P. Xie and B. Cheng, Analyst, 1997, 122, 263 RSC.
  6. H. Shen, Y. P. Tang, X. L. Xiao, S. F. Zhang and R. X. Liu, Analyst, 1995, 120, 1599 RSC.
  7. F. L. Zhao, W. Lian and S. Y. Tong, Lihua Jianyan Huaxue Fence, 1997, 33, 395 Search PubMed.
  8. G. S. Vasilikiots, T. Kouimtzis, C. Apostolopoulou and A. Voulgaropoulos, Anal. Chim. Acta, 1974, 70, 319 CrossRef CAS.
  9. D. G. Themelis, G. A. Zachariadis and J. A. Stratis, Analyst, 1995, 120, 1593 RSC.
  10. J. P. R. Jorge, P. Trujillo and J. J. Arias, Chim. Acta Turc., 1989, 17, 329 Search PubMed.
  11. M. M. Zareh, A. S. Amin and M. M. El Henawee, Analusis, 1995, 23, 171 CAS.
  12. V. Maheswariand and N. Balasurbramanian, Fresenius' J. Anal. Chem., 1995, 351, 333 CrossRef.
  13. I. Mori, K. Taguchi, Y. Fujita and T. Matsuo, Anal. Lett., 1995, 28, 225 CAS.
  14. Q. Wei, B. Du, X. Shen and D. B. Hui, Fenxi Huaxue, 1994, 22, 1132 CAS.
  15. J. Kobylecka, Chem. Anal. (Warsaw), 1992, 37, 369 Search PubMed.
  16. B. R. Reddy and P. V. R. Bhaskarasarma, Talanta, 1994, 41, 1335 CrossRef CAS.
  17. J. A. Jadhav, J. Indian Chem. Soc., 1995, 72, 651 Search PubMed.
  18. B. S. Chandravanshi and G. Asgedom, Chem. Anal. (Warsaw), 1995, 40, 225 Search PubMed.
  19. A. K. Malik, A. Rao and A. L. J. Rao, Indian J. Chem., Sect. A, 1993, 32A, 1105.
  20. M. Kamburova, A. Alexandrov and K. Trifonov, Chem. Anal. (Warsaw), 1994, 39, 639 Search PubMed.
  21. I. R. Bishnoi, D. N. Purohit and R. Bhatnagar, Acta Cienc. Indica. Chem., 1990, 163, 17 Search PubMed.
  22. M. V. Dawson and S. J. Lyle, Talanta, 1990, 37, 443 CrossRef CAS.
  23. C. Herrero Latorre, M. H. Rollain Rodriguez and F. Bermejo Martinez, An. Quim., 1990, 86, 46 Search PubMed.
  24. V. D. Barhate and M. R. Patil, Curr. Sci., 1989, 58, 291 Search PubMed.
  25. F. Alvarez, F. De Pablos and J. L. Gomez Ariza, Quim Anal. (Barcelona), 1988, 7, 473 Search PubMed.
  26. F. Khan and R. B. Kharat, Zh. Anal. Khim., 1989, 44, 947 Search PubMed.
  27. T. K. Thokdar, P. K. Paria and S. K. Majumdar, Indian J. Chem., Sect. A, 1989, 28A, 342 CAS.
  28. F. Salinas, J. J. Berzas Nevado and A. Espinosa Mansilla, Anal. Lett., 1988, 21, 2011 CAS.
  29. R. A. Lorenzo Ferreira, M. L. Ensenat, Y. Berea and F. Bermejo Martinez, Anal. Lett., 1989, 22, 1819.
  30. M. S. Carvalho, I. C. S. Fraga, K. C. M. Neto and E. Q. Silva, Talanta, 1996, 43, 1675 CrossRef CAS.
  31. N. Jie and L. Fan, Gaodeng Xuexiao Huaxue Xuebao, 1989, 3, 302 Search PubMed.
  32. P. Ai, J. W. Zhao, Q. H. Xu and W. M. Zhu, Fenxi Shiyanshi, 1997, 16, 11 Search PubMed.
  33. D. T. Burns, P. Hanprasopwattana and B. P. Murphy, Anal. Chim. Acta, 1982, 134, 397 CrossRef CAS.
  34. D. T. Burns, P. Hanprasopwattana and S. Kheawpintong, Anal. Chim. Acta, 1983, 151, 245 CrossRef CAS.
  35. S. B. Zamochnick and G. A. Rechitz, Z. Anal. Chem., 1964, 199, 424 CrossRef CAS.
  36. G. E. Zhang, S. L. Feng and D. X. Cheng, Microchemical J., 1996, 53, 308 Search PubMed.
  37. F. G. Sanchez, A. Navas, J. J. Laserna and M. R. M. de la Barrera, Fresenius' Z. Anal. Chem., 1983, 315, 491 CrossRef.
  38. Z. Zeng and Q. H. Xu, Henliang Fenxi, 1991, 3-4, 64 Search PubMed.
  39. Z. Zeng, Mikrochim. Acta, 1994, 116, 157 CAS.
  40. Z. Zeng and Q. H. Xu, Talanta, 1992, 116, 157.
  41. Z. Zeng and Q. H. Xu, Yejin Fenxi, 1990, 10, 1 Search PubMed.
  42. Z. Zeng and Q. H. Xu, Fenxi Huaxue, 1991, 19, 134 CAS.
  43. Z. Zeng and Q. H. Xu, Anal. Lett., 1992, 25, 1573 CAS.
  44. E. B. Sandell, Colorimetric Determination of Traces Metals, Wiley, New York, 1944, 358 Search PubMed.
  45. M. Tsuchiya and Y. Iwanami, Anal. Sci., 1992, 8, 869 CAS.
Click here to see how this site uses Cookies. View our privacy policy here.