“…In spite of being multielemental techniques, there are not many papers showing the use of chemometrics that have taken into account parameters involved in analysis using ICP-MS, 28 ICP-OES 29,30 or VG-ICP-OES. [31][32][33][34] Experimental Instrumentation An Optima 3300 DV TM ICP-OES spectrometer (PerkinElmer, Norwalk, CT, USA) was used to determine noble and transition metal concentrations. The spectrometer system includes a three channel, software controlled peristaltic pump.…”