[The Properties of an Infrared Hybrid Single Beam Spectrum].
Guang Pu Xue Yu Guang Pu Fen Xi
; 37(2): 403-7, 2017 Feb.
Article
em Zh
| MEDLINE
| ID: mdl-30264979
ABSTRACT
A hybrid single beam spectrum ø(α)=αø(b1)+(1-α)ø(b2)=αø0e(-Kb1)+(1-α)ø0e(-Kb2) is introduced as the combination of two single beam spectra ø(b1) and ø(b2) from the same sample but with different pathlengths (b(1) and b(2)), where α(0ï¼αï¼1) is the hybrid coefficient. The intensity of hybrid spectrum ø(α) can be controlled easily to the desired point by simply choosing an appropriate α. The experimental results showed that hybrid spectrum ø(α) is very nearly identical to ø(b)=ø(0)e-K(b(2)-αb(2)+αb(b)) under appropriate conditions, namely ø(α)≈ø(b) , where ø(b) is the single beam spectrum of the real sample with the pathlength of b(2)-αb(2)+αb(1). Therefore, the desired single beam spectrum ø(b) can be obtained easily by choosing α and we no longer need to prepare IR sample with the thickness of b. Hybrid spectrum method shows valuable potential in application of eliminating background interference.
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Base de dados:
MEDLINE
Idioma:
Zh
Ano de publicação:
2017
Tipo de documento:
Article