Effects of Spectral Resolution on the Determination of Glucose in a Simulated Biological Matrix by Fourier Transform near Infrared Spectrometry

2006 ◽  
Vol 14 (5) ◽  
pp. 291-299 ◽  
Author(s):  
Kirsten E. Kramer ◽  
Gary W. Small
Keyword(s):  
Fourier Transform ◽  
Spectral Resolution ◽  
Near Infrared ◽  
Infrared Spectrometry ◽  
Biological Matrix ◽  
Near Infrared Spectrometry

scholarly journals Monitoring of CO2 Absorption Solvent in Natural Gas Process Using Fourier Transform Near-Infrared Spectrometry

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Mohd Yusop Nurida ◽  
Dolmat Norfadilah ◽  
Mohd Rozaiddin Siti Aishah ◽  
Chan Zhe Phak ◽  
Syafiqa M. Saleh
Keyword(s):  
Fourier Transform ◽  
Near Infrared ◽  
Nir Spectroscopy ◽  
Partial Least Square ◽  
Least Square ◽  
Infrared Spectrometry ◽  
Calibration Model ◽  
Co2 Absorption ◽  
Processing Unit

The analytical methods for the determination of the amine solvent properties do not provide input data for real-time process control and optimization and are labor-intensive, time-consuming, and impractical for studies of dynamic changes in a process. In this study, the potential of nondestructive determination of amine concentration, CO2 loading, and water content in CO2 absorption solvent in the gas processing unit was investigated through Fourier transform near-infrared (FT-NIR) spectroscopy that has the ability to readily carry out multicomponent analysis in association with multivariate analysis methods. The FT-NIR spectra for the solvent were captured and interpreted by using suitable spectra wavenumber regions through multivariate statistical techniques such as partial least square (PLS). The calibration model developed for amine determination had the highest coefficient of determination (R2) of 0.9955 and RMSECV of 0.75%. CO2 calibration model achieved R2 of 0.9902 with RMSECV of 0.25% whereas the water calibration model had R2 of 0.9915 with RMSECV of 1.02%. The statistical evaluation of the validation samples also confirmed that the difference between the actual value and the predicted value from the calibration model was not significantly different and acceptable. Therefore, the amine, CO2, and water models have given a satisfactory result for the concentration determination using the FT-NIR technique. The results of this study indicated that FT-NIR spectroscopy with chemometrics and multivariate technique can be used for the CO2 solvent monitoring to replace the time-consuming and labor-intensive conventional methods.

Flow-injection determination of water in organic solvents by near-infrared spectrometry

1993 ◽  
Vol 281 (2) ◽  
pp. 259-264 ◽  
Author(s):  
Salvador Garrigues ◽  
Máximo Gallignani ◽  
Miguel de la Guardia
Keyword(s):  
Organic Solvents ◽  
Flow Injection ◽  
Near Infrared ◽  
Infrared Spectrometry ◽  
Near Infrared Spectrometry

On-line non-destructive determination of proteins and infiltrated fat in Iberian pork loin by near infrared spectrometry with a remote reflectance fibre optic probe

2002 ◽  
Vol 453 (2) ◽  
pp. 281-288 ◽  
Author(s):  
Inmaculada González-Martı́n ◽  
Claudio González-Pérez ◽  
Jesús Hernández-Méndez ◽  
Noelia Alvarez-Garcı́a ◽  
José-Luis Hernández Andaluz
Keyword(s):  
Near Infrared ◽  
Infrared Spectrometry ◽  
Fibre Optic ◽  
Fibre Optic Probe ◽  
On Line ◽  
Near Infrared Spectrometry ◽  
Pork Loin ◽  
Optic Probe ◽  
Non Destructive
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