Absorption Spectrophotometry

absorption bands absorption curves absorption spectra Amer amplifier aperture applied approximation atoms beam Beer's law benzene bolometer calculated calibration carbon cell cent chem chemical chromophoric circular dichroism cm-¹ components compounds concentration detector determined diffraction discussed dispersion effect electronic emission energy levels equation error estimation example exit slit extinction coefficient Fahrenfort filter fluorescence frequency gives grating hydrogen impurities incident increase infra-red instrument intensity lamp length linear lines Lond M₁ material maxima maximum measurements method mirror mixture molecular extinction coefficient molecule monochromatic monochromator noise obtained optical density particles peak photocell photoelectric photomultiplier photon Phys plane polarized plate prism quantum number quartz ratio reflection refractive index region rotational scattering shown shows slit width solution solvent spectrophotometer Spectroscopy spectrum stray radiation structure substance suitable Table temperature thermopile thickness tion transmission transmitted ultra-violet values vibration vibration-rotation vitamin wave waveband wavelength wavelength range Wavenumber