Development and Use of an Attenuated Total Reflectance/Fourier Transform Infrared (ATR/FT-IR) Spectral Database To Identify Foreign Matter in Cotton

2006 ◽  
Vol 54 (20) ◽  
pp. 7405-7412 ◽  
Author(s):  
David S. Himmelsbach ◽  
John W. Hellgeth ◽  
David D. McAlister
Keyword(s):  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Attenuated Total Reflectance ◽  
Foreign Matter ◽  
Total Reflectance ◽  
Ft Ir ◽  
Spectral Database

Fourier Transform Infrared Spectrometry/Attenuated Total Reflectance Study of the Reaction of Pentanal and Propanal with 2-(Hydroxymethyl)Piperidine

1992 ◽  
Vol 46 (2) ◽  
pp. 266-272 ◽  
Author(s):  
Eugene R. Kennedy ◽  
Kevin Ashley
Keyword(s):  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Solution Phase ◽  
Attenuated Total Reflectance ◽  
Infrared Spectrometry ◽  
Fourier Transform Infrared Spectrometry ◽  
Total Reflectance ◽  
Solid Interface ◽  
Ft Ir ◽  
Flow Through

The reactions of propanal and pentanal with 2-(hydroxymethyl)piperidine were investigated by Fourier transform infrared spectrometry/attenuated total reflectance in both the solution phase and at the gas/solid interface. The reactions were studied with the use of a flow-through cylindrical internal reflection (“circle”) cell. Reaction intermediates were tentatively identified by their characteristic infrared absorption frequencies. At the gas/solid interface the reaction is thought to yield a hemiaminal intermediate. In the solution phase a hemiaminal intermediate is believed to form initially, followed by loss of water to generate an enamine product. In both gas-phase and solution-phase studies, an oxazolidine product is prepared only after an ultrasound treatment. The FT-IR/ATR technique reveals detailed mechanistic information concerning reactions between aldehydes and ethanol amines.

A green method for the quantitative assessment of neutral oil in palm fatty acid distillates by single bounce attenuated total reflectance Fourier-transform infrared spectroscopy

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 50591-50596 ◽  
Author(s):  
Muhammad Afzal Kamboh ◽  
Abdul Sattar Chang ◽  
Wan Aini Wan Ibrahim ◽  
Mohd Marsin Sanagi ◽  
Sarfaraz Ahmed Mahesar ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fatty Acid ◽  
Fourier Transform Infrared Spectroscopy ◽  
Quantitative Assessment ◽  
Fourier Transform Infrared ◽  
Attenuated Total Reflectance ◽  
Green Method ◽  
Total Reflectance ◽  
Ft Ir

Green, reliable, rapid and novel SB-ATR FT-IR method has been reported in which only one drop of sample is required, and less than 2 min are required to take results for the quantitative assessment of neutral oil present in PFAD.

scholarly journals Authenticity Determination of Greek-Cretan Mono-Varietal White and Red Wines Based on their Phenolic Content Using Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy and Chemometrics

2016 ◽  
Vol 4 (Special-Issue-October) ◽  
pp. 54-62 ◽  
Author(s):  
Marianthi Basalekou ◽  
Argiro Stratidaki ◽  
Christos Pappas ◽  
Petros Tarantilis ◽  
Yorgos Kotseridis ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Phenolic Content ◽  
Principal Component ◽  
Fourier Transform Infrared ◽  
Critical Issue ◽  
Attenuated Total Reflectance ◽  
Fast Method ◽  
Total Reflectance ◽  
Ft Ir ◽  
Grape Varieties

The assessment of wine authenticity is a critical issue that has gained a lot of interest internationally. A simple and fast method was developed for the varietal classification of Greek wines according to grape cultivar using attenuated total reflectance (ATR) Fourier transform infrared (FT-IR) spectroscopy. The phenolic content and color parameters of wine samples (n=88) made by two white (Vilana and Dafni) and two red (Kotsifali and Mandilari) grape varieties were measured and their FT-IR spectra were recorded. Principal Component Analysis (PCA) of their chemical parameters indicated that the wines can be discriminated based on their different phenolic content. The spectroscopic analysis combined with discriminant analysis of the fingerprint region of the spectra (1800-900 cm-1) resulted in complete discrimination of the grape varieties. The proposed method in comparison with the rest analytical methods is simpler, less time consuming, more economical and requires reduced quantities of chemical reagents prior to analysis.

scholarly journals Analysis of ‘legal high’ substances and common adulterants using handheld spectroscopic techniques

2015 ◽  
Vol 7 (2) ◽  
pp. 736-746 ◽  
Author(s):  
S. Assi ◽  
A. Guirguis ◽  
S. Halsey ◽  
S. Fergus ◽  
J. L. Stair
Keyword(s):  
Fourier Transform ◽  
Ir Spectroscopy ◽  
Near Infrared ◽  
Fourier Transform Infrared ◽  
Attenuated Total Reflectance ◽  
Spectroscopic Techniques ◽  
Total Reflectance ◽  
Legal High ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Three handheld spectrometers, near-infrared (NIR), Raman and attenuated total reflectance Fourier transform-infrared (ATR-FT-IR) spectroscopy, were used for the identification of ‘legal high’ model mixtures and Internet products.

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