This method is for the collection and analysis of morpholine. The sample is collected on a silica gel tube. After collection the sample is desorbed with 0.05 M H2SO4, made basic with 1.2M of NaOH and analyzed by GC/FID (flame ionization detector).
This method is validated over the range of 28.4 - 108.4 mg/m3. Siica gel has a high affinity for water so morpholine may not be efficiently trapped in the presence of high relative humidity.
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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: | Silica gel tube, 150mg/75mg (SKC 226-10) |
| Collection Method: | The method recommends a flow rate of 0.2 L/min. and a 20L sample collection volume. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
S150
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Morpholine | C4H9NO |
110-91-8 |
0.033 |
mg |
* 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.