SEARCH Articles Figures Tables Amine desorption, variable-temperature diffuse reflectance Fourier transform infrared Diffuse reflectance Diffused reflection Diffusion temperature Reflection, diffuse Siliceous surface, variable-temperature diffuse reflectance Fourier transform Siliceous, variable-temperature diffuse reflectance Fourier transform infrared Variable temperature Variable-temperature diffuse reflectance Fourier transform infrared Variable-temperature diffuse reflectance siliceous