Table 2 Analytical parameters applied for the quantification of anions
From: Screening and quantification of inorganic anions in Shilajit and its supplements
Anion | Linear range (µg.mL− 1) | Equation | Correlation coefficient (R2) | LOD (µg.mL− 1) | LOQ (µg.mL− 1) |
|---|---|---|---|---|---|
F− | 30–100 | y = 2.0 × 10− 4 x– 9.0 × 10− 4 | 0.9978 | 5.66 | 17.17 |
Cl− | 15–100 | y = 1.0 × 10− 4 x + 1.0 × 10− 4 | 0.9999 | 1.23 | 3.71 |
Br− | 60–260 | y = 6.0 × 10− 5 x + 2.0 × 10− 4 | 0.9925 | 23.32 | 70.68 |
NO3− | 60–200 | y = 6.0 × 10− 5 x– 2.1 × 10− 3 | 0.9911 | 23.85 | 72.28 |
NO2− | 100–500 | y = 1.0 × 10− 4 x– 2.3 × 10− 3 | 0.9941 | 46.43 | 140.69 |
HPO42− | 150–600 | y = 4.0 × 10− 5 x– 3.5 × 10− 3 | 0.9996 | 17.16 | 52.00 |
SO42− | 100–350 | y = 1.0 × 10− 4 x– 1.4 × 10− 3 | 0.9992 | 10.95 | 33.20 |