From: Terminalia chebula: a novel natural product colorimetric sensor for Fe2+ and Fe3+ ions
Metal ion | Added (M) | Recovered (M) | Recovery (%) | R.S.D (n = 3) (%) |
---|---|---|---|---|
Fe2+ | 0 | 0 | ||
1.50 × 10–4 | 1.48 × 10–4 | 98.66 | 1.71 | |
3.0 × 10–4 | 2.97 × 10–4 | 99 | 1.69 | |
Fe3+ | 0 | 0 | ||
1.50 × 10–4 | 1.47 × 10–4 | 98 | 1.84 | |
3.0 × 10–4 | 2.95 × 10–4 | 98.33 | 1.81 |