Spike Recovery Study of BDS and WFI
| Spiked Compounds | Analytical Methods | |
|---|---|---|
| % Recovery of Spiked BDS | % Recovery of Spiked WFI | |
| VOCs | by SPME GC-FID | |
| Ethanol | 37% | 91% |
| Acetone | 50% | 81% |
| Isopropanol | 50% | 100% |
| Epichlorohydrin | 51% | 29% |
| Toluene | 14% | 45% |
| SVOCs | by DCM extraction GC-MS | |
| Caprolactam | 115% | 85% |
| 3-Phenoxy-1,2-propanediol | 120% | 113% |
| 2,4-Di-tert-butyl phenol | 11% | 47% |
| Ionic Species | by IC | |
| Acetate | 95% | 93% |
| Formate | 100% | 95% |
| Glysidyltrimethyl Ammonium | 78% | 89% |
| Other Compounds | by LC-DAD/ICP-AES | |
| Formaldehyde | 100% | 90% |
| Silicon | 80% | 110% |