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. 2025 Aug 25;47(10):411. doi: 10.1007/s10653-025-02723-2

Table 3.

Calibration parameters for arsenic species determination

Analyte Calibration range (µg/L) R2 y-intercept Slope of regression line (cps.s/µg.L−1) Residual sum of squares (cps.s)
AsV 0.25 – 20.00 0.999 170 5.59 × 104 6.56 × 10–7
MMA 0.25 – 20.00 0.999 589 1.54 × 104 4.86 × 10–6
AsIII 0.25 – 20.00 0.999 199 5.64 × 104 3.36 × 10–7
DMA 0.25 – 20.00 0.999 125 5.45 × 104 3.55 × 10–7