The dynamic column filled with Cr(VI)-IIP adsorbent was used to treat the actual water samples from tap water and Yudai River (Zhenjiang, China) successfully. From the experimental results in Table 4, the recoveries of Cr(VI) in the two samples ranged from 97.9 to 104.8%, and the relative standard deviations ranged from 0.1 to 2.3%, indicating that the potential application of the prepared novel Cr(VI)-IIP combined with ICP-AES for the separation and detection of trace metal ions in water samples.
Determination and recoveries of Cr(VI) in samples
| Sample . | Cr(VI) added . | Cr(VI) founded . | Recovery ± RSD . |
|---|---|---|---|
| (ug/L) . | (ug/L) . | (%) . | |
| Tap water | 0 | 5.28 ± 0.2 | |
| 20 | 26.13 ± 0.3 | 104.3 ± 2.3 | |
| 50 | 56.67 ± 0.7 | 102.8 ± 1.8 | |
| 100 | 103.84 ± 1.4 | 98.6 ± 1.6 | |
| Yudai River water | 0 | 23.12 ± 0.3 | |
| 20 | 42.69 ± 0.1 | 97.9 ± 1.8 | |
| 50 | 75.51 ± 0.5 | 104.8 ± 1.5 | |
| 100 | 123.84 ± 0.6 | 100.7 ± 0.9 |
| Sample . | Cr(VI) added . | Cr(VI) founded . | Recovery ± RSD . |
|---|---|---|---|
| (ug/L) . | (ug/L) . | (%) . | |
| Tap water | 0 | 5.28 ± 0.2 | |
| 20 | 26.13 ± 0.3 | 104.3 ± 2.3 | |
| 50 | 56.67 ± 0.7 | 102.8 ± 1.8 | |
| 100 | 103.84 ± 1.4 | 98.6 ± 1.6 | |
| Yudai River water | 0 | 23.12 ± 0.3 | |
| 20 | 42.69 ± 0.1 | 97.9 ± 1.8 | |
| 50 | 75.51 ± 0.5 | 104.8 ± 1.5 | |
| 100 | 123.84 ± 0.6 | 100.7 ± 0.9 |