Fabbri and Baraldi recorded infrared emission spectra with a normal optical null double beam spectro-photometer and discussed two possible arrangements of sample and reference emitter: (a) sample in front of the sample slit, reference opposite the reference slit; (b) sample in front
of the reference slit, reference in the sample beam. According to them arrangement a "is unsuitable" and "described simply for the sake of completeness." On the other hand, a number of authors have measured infrared emission spectra with good results, utilizing method a and a normal spectrophotometer.
Sektion Chemie der Technischen Universität Dresden, 8027 Dresden, DDR
Publication date: July 1, 1974
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