Some basic principles of the measurement can be found here
1. A. Maltseva, V. Shkirskiy, G. Lefèvre, P. Volovitch, Effect of pH on Mg(OH)2 film evolution on corroding Mg by in situ Kinetic Raman Mapping (KRM), Corros. Sci. (2019) 153https://doi.org/10.1016/j.corsci.2019.03.024 (open access)
2. A. Maltseva, S.V. Lamaka, K.A. Yasakau, Di Mei, D. Kurchavov, M.L. Zheludkevich, G. Lefèvre, P. Volovitch, In situ surface film evolution during aqueous corrosion of magnesium in presence of selected carboxylates, Corros. Sci. (2020) 108484 https://doi.org/10.1016/j.corsci.2020.108484 pdf
3. Y.M. Yan, A. Maltseva, P. Zhou, X.J. Li, Z.R. Zeng, O. Gharbi, K. Ogle, M. La Haye, M. Vaudescal, M. Esmaily, N. Birbilis and P. Volovitch, “On the in-situ aqueous stability of an Mg-Li-(Al-Y-Zr) alloy: Role of Li” Corros. Sci. 164 (2020) 108342, https://doi.org/10.1016/j.corsci.2019.108342 pdf