Table 2 The dependence of the area of the selected peak 1078 cm- 1 in SERS spectra on the concentration of BFD
From: Polytetrafluorethylene-Au as a substrate for surface-enhanced Raman spectroscopy
c(BFD)/mol/l | PTFE-Au-BFD | PTFE-Au-BFD-AuNP (prepared according to Figure 2b) | PTFE-Au-BFD-AgNP (prepared according to Figure 2b) |
|---|---|---|---|
10-2 | 3.21 × 106 | 1.44 × 106 | 1.86 × 106 |
10-3 | 8.37 × 106 | 4.09 × 106 | 6.10 × 106 |
10-4 | 5.96 × 106 | 4.12 × 106 | 5.93 × 106 |
10-5 | 10.3 × 106 | 8.91 × 106 | 8.04 × 106 |
10-6 | 12.6 × 106 | 9.06 × 106 | 4.96 × 106 |
10-7 | 6.38 × 106 | 0.709 × 106 | 6.58 × 106 |
10-8 | 0.09 × 106 | 0.218 × 106 | 1.14 × 106 |