Table 1. Two-Step Strategy (i.e., 2 s Odor-Cued Grab Sample into the m-FEP Bag Grab Sample Followed by Immediate Extraction of the Bagged Air Sample with SPME) Enhanced Analytical Detection of Odor-Causing Odorants.
| two-step, odor-cued grab sample into the m-FEP bag followed by SPME | MS detector response to naphthalene | ∼response differential |
|---|---|---|
| sample #1 | 10,524 | |
| sample #2 | 10,318 | |
| mean | 10,421 | 4 × direct |
| Direct Air Sampling with SPME | ||
| sample #1 | 2624 | |
| sample #2 | 2451 | |
| mean | 2538 | 0.25 × two-step |