Because of the potentially carcinogenic properties of the bromate that can form during the ozonization of drinking water, this determination is very important.
Depending on the required detection limit, different detection methods can be used:
- Conductivity detection with chemical suppression allows the determination of bromate in the lower μg/L range.
- In the ng/L range bromate can be detected by means of IC/MS coupling or post-column derivatization with potassium iodide and subsequent UV detection.
Download applications:
AN-S-235 Determination of anions and oxyhalides by US EPA method 300.1 A and B in a single analysis (standard solution)
AN-S-236 Determination of anions and oxyhalides by US EPA method 300.1 A and B in a single analysis (sample)
AN-M-004 Traces of bromide and bromate in drinking water by IC-MS, determination of the Method Detection Limit (MDL)
AN-U-018 Bromate determination using post-column reaction (o-dianisidine method)
AN-U-049 Bromate in drinking water according to ISO 11206 (Draft)
Detection limits:
Overview of methods for bromate determination (DIN 32645), with detection limits:
| |
EPA method |
Injection volume |
Detection limits |
| |
|
|
Ultrapure water |
Drinking Water* |
| |
|
μL |
μg/L |
| Conductivity detection with chemical supression |
300.1 |
100 |
0.130 |
0.390 |
| IC/MS coupling; MS detection |
|
100 |
0.006 |
0.007 |
| Post-column derivatization with o-dianisidine; VIS detection |
317.0 |
100 |
0.210 |
0.640 |
| Post-column derivatization with KI; UV detection |
326.0 |
1000 |
0.032 |
0.066 |
| * Drinking water matrix: 100 mg/L of each chloride, sulfate and carbonate |
