scholarly journals Robustness of visible near‐infrared and mid‐infrared spectroscopic models to changes in the quantity and quality of crop residues in soil

2020 ◽  
Vol 84 (3) ◽  
pp. 963-977
Author(s):  
Isabel Greenberg ◽  
Deborah Linsler ◽  
Michael Vohland ◽  
Bernard Ludwig
Keyword(s):  
Near Infrared ◽  
Crop Residues ◽  
Mid Infrared ◽  
Infrared Spectroscopic

Near-infrared and Mid-infrared Spectroscopic Techniques for a Fast and Nondestructive Quality Control of Thymi herba

Planta Medica ◽  
2017 ◽  
Vol 84 (06/07) ◽  
pp. 420-427 ◽  
Author(s):  
Cornelia Pezzei ◽  
Stefan Schönbichler ◽  
Shah Hussain ◽  
Christian Kirchler ◽  
Verena Huck-Pezzei ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Rosmarinic Acid ◽  
Near Infrared ◽  
Coefficient Of Determination ◽  
Attenuated Total Reflectance ◽  
Spectroscopic Techniques ◽  
Test Set ◽  
Mid Infrared ◽  
Capacity Coefficient ◽  
Infrared Spectroscopic

AbstractIn this study, novel near-infrared and attenuated total reflectance mid-infrared spectroscopic methods coupled with multivariate data analysis were established enabling the determination of thymol, rosmarinic acid, and the antioxidant capacity of Thymi herba. A new high-performance liquid chromatography method and UV-Vis spectroscopy were applied as reference methods. Partial least squares regressions were carried out as cross and test set validations. To reduce systematic errors, different data pretreatments, such as multiplicative scatter correction, 1st derivative, or 2nd derivative, were applied on the spectra. The performances of the two infrared spectroscopic techniques were evaluated and compared. In general, attenuated total reflectance mid-infrared spectroscopy demonstrated a slightly better predictive power (thymol: coefficient of determination = 0.93, factors = 3, ratio of performance to deviation = 3.94; rosmarinic acid: coefficient of determination = 0.91, factors = 3, ratio of performance to deviation = 3.35, antioxidant capacity: coefficient of determination = 0.87, factors = 2, ratio of performance to deviation = 2.80; test set validation) than near-infrared spectroscopy (thymol: coefficient of determination = 0.90, factors = 6, ratio of performance to deviation = 3.10; rosmarinic acid: coefficient of determination = 0.92, factors = 6, ratio of performance to deviation = 3.61, antioxidant capacity: coefficient of determination = 0.91, factors = 6, ratio of performance to deviation = 3.42; test set validation). The capability of infrared vibrational spectroscopy as a quick and simple analytical tool to replace conventional time and chemical consuming analyses for the quality control of T. herba could be demonstrated.

scholarly journals A Large Mid-Infrared Spectroscopic and Near-Infrared Imaging Survey of Ultraluminous Infrared Galaxies: Their Nature and Evolution

1999 ◽  
Vol 118 (6) ◽  
pp. 2625-2645 ◽  
Author(s):  
D. Rigopoulou ◽  
H. W. W. Spoon ◽  
R. Genzel ◽  
D. Lutz ◽  
A. F. M. Moorwood ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Infrared Galaxies ◽  
Near Infrared Imaging ◽  
Mid Infrared ◽  
Infrared Spectroscopic ◽  
Ultraluminous Infrared Galaxies

scholarly journals Near infrared spectroscopic imaging assessment of cartilage composition: Validation with mid infrared imaging spectroscopy

2016 ◽  
Vol 926 ◽  
pp. 79-87 ◽  
Author(s):  
Uday P. Palukuru ◽  
Arash Hanifi ◽  
Cushla M. McGoverin ◽  
Sean Devlin ◽  
Peter I. Lelkes ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Imaging Spectroscopy ◽  
Spectroscopic Imaging ◽  
Mid Infrared ◽  
Infrared Spectroscopic ◽  
Infrared Spectroscopic Imaging

scholarly journals The structure of selected magnesium carbonate minerals – A near infrared and mid-infrared spectroscopic study

Polyhedron ◽  
2008 ◽  
Vol 27 (9-10) ◽  
pp. 2069-2076 ◽  
Author(s):  
Ray L. Frost ◽  
Silmarilly Bahfenne ◽  
Jessica Graham ◽  
B. Jagannadha Reddy
Keyword(s):  
Spectroscopic Study ◽  
Near Infrared ◽  
Magnesium Carbonate ◽  
Infrared Spectroscopic Study ◽  
Carbonate Minerals ◽  
Mid Infrared ◽  
Infrared Spectroscopic

Evaluation of the Quality of Deep Frying Oils with Fourier Transform Near-infrared and Mid-infrared Spectroscop

2012 ◽  
Vol 77 (2) ◽  
pp. C261-C266 ◽  
Author(s):  
Rui Du ◽  
Keqiang Lai ◽  
Zhuqing Xiao ◽  
Yungang Shen ◽  
Xichang Wang ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Near Infrared ◽  
Deep Frying ◽  
Frying Oils ◽  
Mid Infrared
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