Enhancement of Congo Red-Neomycin Resonance Rayleigh Scattering by Dodecyl Trimethyl Ammonium Bromide and its Application

Figure 3

Resonance Rayleigh scattering spectra of congo red-neomycin-DTAB system. 1–7: 1 mL pH 6.0 Britton–Robinson buffer solution, congo red: 1.5 × 10⁻⁵ mol·L⁻¹, neomycin: 0.07, 0.1, 0.3, 0.5, 0.7, 0.9, 1.0 μg·mL⁻¹, DTAB: 1.0 × 10⁻⁵ mol·L⁻¹. The inset shows the linear range of neomycin.