“…Due to spectral interferences, the determination of lower concentrations (ng/mL order or lower) of P, S, Si, Cl, Br, and I is often challenging for traditional ICP-MS. Measurement by ICP-QMS/QMS at massshift mode using O2 as the cell gas permitted a better performance for analysis of these element and has been reported for P, 15,19,34,41,45,[49][50][51][52] S, 15,19,34,40,41,45,[44][45][46][47][48][49][50][51][52] Si, 19,34,45,50,52 Cl, 34,45,52 Br, 34,41 and I, 34,41 respectively.…”