Hokonya, N.; Mahamadi, C.; Muchanyereyi, N. M.; Gutu, T. Evaluation of the Effects of Significant Factors and Interactions on the Enrichment of Arsenic and Chromium by Pipette Tip Solid Phase Extraction Using Novel P-ZrO2CeO2ZnO Nanoparticles Alginate Beads. Eur. J. Chem. 2022, 13, 327-336.