Table 8.
The results of ICP–OES determination of metals in natural waters (sample volume 100 mL acidified with 5 mL of 1 М HNO3).
| Metal | SiO2-PHMG-NRS | SiO2-PHMG-NNS | ||||||
|---|---|---|---|---|---|---|---|---|
| Added, ng mL−1 | Found, ng mL−1 | Added, ng mL−1 | Found, ng mL−1 | Added, ng mL−1 | Found, ng mL−1 | Added, ng mL−1 | Found, ng mL−1 | |
| Sample 1 | Sample 2 | Sample 2 | Sample 3 | |||||
| Cu(II) | - 5.0 |
0.34±0.01 5.37±0.05a |
- 5.0 |
2.32±0.04 7.33±0.07 |
- 5.0 |
2.28±0.04 7.26±0.07 |
- 5.0 |
0.97±0.01 5.99±0.06 |
| Fe(III) | - 5.0 |
0.72±0.01 5.72±0.05 |
- 5.0 |
1.69±0.03 6.65±0.06 |
- 5.0 |
1.71±0.03 6.69±0.06 |
- 5.0 |
10.7±0.1 15.7±0.1 |
| Ni(II) | - 2.0 |
0.21±0.01 2.19±0.03 |
- 2.0 |
0.60±0.02 2.58±0.03 |
- 2.0 |
0.56±0.02 2.57±0.03 |
- 2.0 |
2.85±0.04 4.82±0.04 |
| Al(III) | - 2.0 |
2.44±0.04 4.43±0.04 |
- 2.0 |
4.02±0.04 6.01±0.06 |
- 2.0 |
3.99±0.04 6.02±0.06 |
- 2.0 |
7.33±0.08 9.40±0.10 |
| Zn(II) | - 2.0 |
1.62±0.03 3.60±0.04 |
- 2.0 |
2.56±0.04 4.52±0.05 |
- 2.0 |
2.49±0.04 4.52±0.05 |
- 2.0 |
5.05±0.05 7.02±0.07 |
| Pb(II) | - | NDb | - | 0.20±0. 02 | - | 0.22±0.02 | - | 0.48±0.03 |
| 2.0 | 2.03±0.04 | 2.0 | 2.23±0.04 | 2.0 | 2.24±0.04 | 2.0 | 2.50±0.04 | |
(n = 5), - average for five determinations, s - standard deviation, bND – non-detected.