R. Cardoso Machado, M. Aramendía, A. R. A. Nogueira, and M. Resano, “Interference-free determination of Ca in ultrapure water, concentrated acids and hydrogen peroxide using isotope dilution, ICP-MS and CH3F as a reaction gas”, Jorn. jovenes investig. I3A, vol. 5, no. 1, Jun. 2017, doi: 10.26754/jji-i3a.201711964.