2.2. Reagents and analytical solutions High purity deionized water (resistivity 18.2 MΩ cm) was obtained using a Rios 5 reverse osmosis system and a Milli-Q Academic deionizer (Millipore, Bedford, MA, USA), and was used to prepare all the solutions.
2.2. Reagents and analytical solutionsHigh purity deionized water (resistivity 18.2 MΩ cm) was obtainedusing a Rios 5 reverse osmosis system and a Milli-Q Academic deionizer(Millipore, Bedford, MA, USA), and was used to prepare all the solutions.