Newman, A. C. D. 1958. A spectrophotometric investigation of the reaction between fluoride and the complex of sodium quinalizarin sulphonate with aluminium. Analytica Chimica Acta. 19 (6), pp. 580-586. https://doi.org/10.1016/S0003-2670(00)88224-0
Wenzel, W. W., Kirchbaumer, N., Prohaska, T., Stingeder, G., Lombi, E. and Adriano, D. C. 2001. Arsenic fractionation in soils using an improved sequential extraction procedure. Analytica Chimica Acta. 436 (2), pp. 309-323. https://doi.org/10.1016/S0003-2670(01)00924-2
Pritchard, D. T. 1965. Determination of aluminium in silicates with DCTA. Analytica Chimica Acta. 32, pp. 184-186. https://doi.org/10.1016/S0003-2670(00)88917-5
Scott, I. M., Lin, W., Liakata, M., Wood, J. E., Vermeer, C. P., Allaway, D., Ward, J. L., Draper, J., Beale, M. H., Corol, D. I., Baker, J. M. and King, R. D. 2013. Merits of random forests emerge in evaluation of chemometric classifiers by external validation. Analytica Chimica Acta. 801, pp. 22-33. https://doi.org/10.1016/j.aca.2013.09.027
Le Goff, T., Braven, J., Ebdon, L. and Scholefield, D. 2004. Phosphate-selective electrodes containing immobilised ionophores. Analytica Chimica Acta. 510 (2), pp. 175-182. https://doi.org/10.1016/j.aca.2004.01.015
Newman, A. C. D. 1958. The separation of fluoride ions from interfering anions and cations by anion exchange chromatography. Analytica Chimica Acta. 19 (5), pp. 471-476. https://doi.org/10.1016/S0003-2670(00)88198-2