Table 2.
Comparison of TU in four different real sample mediums.
| Samples name | Added (molL−1) | Measured (mol L−1) | Recovery (%) | RSD (%) |
|---|---|---|---|---|
| Farmland water-I | 1.0 × 10−4 | 9.94 × 10−5 | 99.4 | 0.29 |
| Farmland water-I | 5.0 × 10−5 | 4.99 × 10−5 | 99.7 | 0.27 |
| Farmland water-I | 2.0 × 10−6 | 1.86 × 10−6 | 99.06 | 0.37 |
| Drain water-II | 1.0 × 10−4 | 9.95 × 10−5 | 99.5 | 0.35 |
| Drain water-II | 5.0 × 10−5 | 4.97 × 10−5 | 99.8 | 0.30 |
| Drain water-II | 2.0 × 10−6 | 1.91 × 10−6 | 99.0 | 0.29 |
| Mango juice | 1.0 × 10−4 | 9.87 × 10−5 | 98.7 | 0.41 |
| Mango juice | 5.0 × 10−5 | 4.89 × 10−5 | 98.4 | 0.49 |
| Mango juice | 2.0 × 10−6 | 1.83 × 10−6 | 98.5 | 0.38 |
| Orange juice | 1.00 × 10−4 | 9.91 × 10−5 | 99.1 | 0.36 |
| Orange juice | 5.0 × 10−5 | 4.91 × 10−5 | 99.0 | 0.40 |
| Orange juice | 2.0 × 10−6 | 1.96 × 10−6 | 99.3 | 0.39 |