Ir calibration polystyrene film pdf
IR CALIBRATION POLYSTYRENE FILM PDF >> READ ONLINE
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Polystyrene Films for Calibrating the. Wavelength Scale of Infrared. Spectrophotometers - SRM 1921. Devinder Gupta, Lang Wang,. strumcnt is our of calibration there is very little that specrroscopists can do other than call in a trained instrument engineer to make any necessary changes. Record the spectrum of the polystyrene film 0.04 mm in thickness. The difference x between the percentage transmittance at the transmission maximum A at 2870 cm Pair of polystyrene calibration films of different thickness. One film is 38 microns and is provided with certification of traceability to five (5) NIST The polystyrene coating prevents degradation of the KBr window from moisture effects. Boron doped crystal windows are also available as calibration standards.Mid-IR Diffuse Reflectance Standard spectrum. Diffuse reflectance sampling in the mid-infrared region is used to measure the reflectance of powders, films, Polystyrene Films for Calibrating the. Wavelength Scale of Infrared. Spectrophotometers —SRM 1921. Devinder Gupta, Lang Wang,. Polystyrene films have long been used for checking the final performance of infrared (IR) spectrometers and specific tests for wavenumber accuracy and
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