This method is for the collection and anlaysis of hydroquinone from workplace air. The smaple is collected on a 10% phosphoric acid coated XAD-7 tube. After collection, the sample is desorbed with methanol and analyzed by GC/FID (flame ionization detector).
NOTE: This is a partially validated method.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | The recovery of the analyte was greater than 96% when stored at ambient temperature for 14 days. |
| Preservatives: | Store samples at ambient temperatures. |
| Required Preps: | XAD-7 tube coated with 10% phosphoric acid, 40/80mg (SKC 226-98) |
| Collection Method: | The method recommends a 0.2 L/min. flow rate and a 20L sample collection volume. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
PV2094
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Hydroquinone | C6H6O2 |
123-31-9 |
1.5 |
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.