reflectance spectrum attenuated total reflectance Fourier transform infrared spectrum Fourier transform infrared attenuated total reflection (FTIR-ATR) spectra Fourier transform infrared attenuated total reflectance (FTIR-ATR) spectrum Fourier transform infrared attenuated total reflectance spectra https://orcid.org/0000-0001-5985-7429 attenuated total reflectance Fourier transform infra-red spectra attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectra ATR FTIR spectra A plot of absorbance or emission vs. wavelength/wavenumber/frequency obtained through a Fourier transform of the times series of the absorption or emission of a sample that has been excited by an infrared-frequency pulse. The infrared light is introduced into a prism at an angle exceeding the critical angle for internal reflection. This produces an evanescent wave at the reflecting surface (a surface which is transparent to infrared such as thallium bromide) on which the sample is supported. The distortion of the evanescent wave by the sample is measured. attenuated total reflectance Fourier transform infrared spectra attenuated total reflectance Fourier transform infrared spectrum Fourier transform infrared attenuated total reflectance spectrum attenuated total reflectance Fourier transform infra-red spectrum ATR FT-IR spectra attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectrum ATR-FTIR spectra CHMO:0002687 ATR-FTIR spectrum 2010-02-04T11:06:06Z Fourier transform infrared attenuated total reflection (FTIR-ATR) spectrum Fourier transform infrared attenuated total reflectance (FTIR-ATR) spectra ATR FTIR spectrum ATR FT-IR spectrum