Table 4.
MDL and RSD results obtained with PAL SPME Arrow (250 μm × 20 mm, 10.2 μL) for PAHs in water in comparison with literature data for classical SPME fibers and SBSE bars
| Compound | PAL SPME Arrow | SPME (Cheng et al.) [15] | SBSE (Carrera et al.) [22] | |||
|---|---|---|---|---|---|---|
| MDL (ng L−1) |
RSD (%) (at 10 ng L−1) | LOD (SD X 3) | RSD (conc. at S/N = 3 × 3) | LOD (conc. at S/N = 3 × 3) | RSD (%) (at 50 ng L−1) | |
| Naphthalene | 0.3 | 5.7 | 2.7 | 9.0 | / | / |
| Acenaphthylene | 0.2 | 6.0 | 1.8 | 6.0 | 0.1 | / |
| Acenaphthene | 0.1 | 7.1 | 0.9 | 3.0 | / | / |
| Fluorene | 0.2 | 5.6 | 3 | 10.0 | 0.1 | 8.3 |
| Phenanthrene | 0.2 | 5.5 | 2.1 | 7.0 | 0.1 | 1.1 |
| Anthracene | 0.3 | 7.6 | 2.1 | 7.0 | 0.2 | 2.1 |
| Pyrene | 0.2 | 6.4 | 3.6 | 12.0 | 0.2 | / |
| Fluoroanthene | 0.2 | 6.2 | 2.1 | 7.0 | 0.2 | / |
| 1,2-Benzanthracene | 0.1 | 6.2 | 2.1 | 7.0 | 0.2 | 6 |
| Chrysene | 0.1 | 11.0 | 1.5 | 5.0 | 0.2 | 10.6 |
| Benzo(b)fluoroanthene | 0.2 | 10.5 | 2.7 | 9.0 | 0.1 | / |
| Benzo(k)fluoroanthene | 0.2 | 8.6 | 1.8 | 6.0 | 0.1 | / |
| Benzo[a]pyrene | 0.3 | 7.2 | 3.6 | 12.0 | 0.1 | / |
| Indeno(1,2,3 cd)pyrene | 0.8 | 9.2 | 3.6 | 12.0 | 0.3 | / |
| Dibenz(ah)anthracene | 0.6 | 11.3 | / | / | 0.3 | / |
| Benzo(ghi)perylene | 0.8 | 11.9 | 1.8 | 6.0 | 0.3 | / |
MDL values calculated with a 99 % confidence interval
/ not determined