1. 1. K. Cammann, “Working with Ion-selective Electrodes”, 1989, Springer, New York.
2. 2. G. J. Moody, B. B. Saad, and J. D. R. Thomas, Sel. Electrodes Rev., 1986, 10, 71.
3. 3. M. E. Meyerhoff and M. N. Opdyche, Adv. Clin. Chem., 1986, 25, 21.
4. Immobilized 8-oxine units on different solid sorbents for the uptake of metal traces
5. 5. E. A. Viltchinskaia, L. L. Zeigman, D. M. Gracia, and P. F. Santos, Electronalysis, 1997, 9, 633.