Results 21 to 30 of about 17,263 (255)

Evaluation of Turmeric Powder Adulterated with Metanil Yellow Using FT-Raman and FT-IR Spectroscopy

Foods, 2016
Turmeric powder (Curcuma longa L.) is valued both for its medicinal properties and for its popular culinary use, such as being a component in curry powder.
Sagar Dhakal, Kuanglin Chao, Walter Schmidt, Jianwei Qin, Moon Kim, Diane Chan   +5 more
doaj   +1 more source

Aplicação de espectroscopias raman e infravermelho na identificação e quantificação de plastificantes em filmes comerciais de PVC esticável Application of infrared and raman techniques in the identification and quantification of plasticizers in commercial films of PVSC

Química Nova, 2009
This paper reports the use of Raman and infrared techniques for the qualitative and quantitative analysis of plasticizers in polyvinylchloride (PVC) commercial films.
Michele Lemos de Souza, Paola Corio, Marcia L. A. Temperini, José Aparício Temperini   +3 more
doaj   +1 more source

Determination of ripeness stages of Mazafati variety of date fruit by Raman spectroscopy [PDF]

Journal of Agricultural Machinery, 2016
Introduction: The economical yield of date fruits depends on many factors (Al-Shahib and Marshall, 2003). One of them is harvesting in optimum stage.
R Khodabakhshian, B Emadi
doaj   +1 more source

Spectroscopic Characterization and DFT Calculations on 1H-benzimidazole-2-carboxylic acid monohydrate Molecule

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
After first determining the optimized geometry of the 1H-benzimidazole-2-carboxylic acid monohydrate (1HBCM) molecule using the B3LYP/6-311+ + G (d, p) basis set, we investigated the spectroscopic properties, electronic properties and optical band gap of
Songül Çifçi, Mustafa Kurt, Emine Babur Şaş   +2 more
doaj   +1 more source

Characterization of 3 fluoro-4-formylphenylboronic acid molecule with Density Functional Teory

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
The geometric structure of3-fluoro-4-fomylphenylboronic acid (3-4FPBA) molecule were investigated withDFT/B3LYP/6-311++G(d,p) basis set. Specra of the title molecule were observedby FT-IR and FT-Raman spectra.
Emine Babur Şaş, Mustafa Kurt
doaj   +1 more source

FT-IR, FT-Raman, UV–Visible, NMR, DFT and molecular docking investigation of 1-(phenyl (piperidin-1-yl) methyl) naphthalene-2-ol

Results in Chemistry, 2021
1-(Phenyl(piperidin-1-yl)methyl)naphthalene-2-ol was synthesized and characterized utilizing spectroscopic techniques (FT-IR, FT-Raman, UV–Visible, NMR, Mass and CHNS analysis).
P. Rajamani, V. Vijayakumar, N. Sundaraganesan, Mani Jeeva, Maria Susai Boobalan   +4 more
doaj   +1 more source

Comprehensive spectroscopic (FT-IR, FT-Raman, 1H and 13C NMR) identification and computational studies on 1-acetyl-1H-indole-2,3-dione

Open Chemistry, 2017
Fourier transform infrared (FT-IR) and FT-Raman spectra of 1-acetyl-1H-indole-2,3-dione (N-acetylisatin) were recorded in the solid phase and analyzed.
Almutairi Maha S., Muthu S., Prasana Johanan C., Chandralekha B., Al-Ghamdi Alwah R., Attia Mohamed I.   +5 more
doaj   +1 more source

Raman spectroscopy mapping of changes in the organization and relative quantities of cell wall polymers in bast fiber cell walls of flax plants exposed to gravitropic stress

Frontiers in Plant Science, 2022
Flax is an important fiber crop that is subject to lodging. In order to gain more information about the potential role of the bast fiber cell wall in the return to the vertical position, 6-week-old flax plants were subjected to a long-term (6 week ...
Anne-Sophie Blervacq, Myriam Moreau, Anne Duputié, Isabelle De Waele, Ludovic Duponchel, Simon Hawkins   +5 more
doaj   +1 more source

Structural Analysis of Hirudin Using FT-IR and FT-Raman Spectroscopic Techniques [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2000
FT-IR and FT-Raman spectra of hirudin have been recorded from the native solid hirudin. The conformation of the molecule has been discussed on the basis of IR and Raman data. It has been concluded that hirudin molecule has a mixed a-helix and random coil
Amanollah Aminzadeh
doaj  

FT-Raman spectroscopy as a tool in evaluation the response of plants to drought stress

Open Chemistry, 2015
The aim of study was to evaluate the usefulness of FT-Raman spectroscopy in assessing stress-induced metabolic changes in plants. 20-d-old optimally watered plants of soybean were exposed to drought.
Rys Magdalena, Szaleniec Maciej, Skoczowski Andrzej, Stawoska Iwona, Janeczko Anna   +4 more
doaj   +1 more source