This method is for the determination of airborne ozone. The sample is collected on two nitrite-impregnated glass fiber filters. The filters are extracted with deionized water and analyzed by ion chromatography (IC) equipped with a UV/VIS detector. A conductivity detector can also be used.
During collection, ozone reacts with the nitrite impregnated on the filter and converts it to nitrate via oxidation.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | None specified in the method. |
| Preservatives: | None specified in the method. |
| Required Preps: | Two nitrite-impregnated glass fiber filters (SKC 225-9014) |
| Collection Method: | The method recommends a 0.5 - 1.5 L/min. flow rate with a collection volume of 22.5 - 90 L. |
| Analytical Methodology: | IC |
| Documentation: | 
ID-214
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Ozone | O3 |
10028-15-6 |
5 |
µg |
* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.