Table 3: Main qualitative parameters of the method obtained for the different chemical species: limits of detection and quantification (LOD and LOQ), linearity (R2), accuracy mean, and relative standard deviation (RSD).

LOD (µM)LOQ (µM)R2Accuracy mean (%)RSD (%)

Total sulfide1.373.660.99970.233.45
Total sulfite7.3228.750.9998−1.150.68
Total thiosulfate1.924.160.9992−3.710.61