scholarly journals Simultaneous Infrared Spectroscopy, Raman Spectroscopy, and Luminescence Sensing: A Multispectroscopic Analytical Platform

2021 ◽  
Author(s):  
Sarah Klingler ◽  
Julian Hniopek ◽  
Robert Stach ◽  
Michael Schmitt ◽  
Jürgen Popp ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Infrared Spectroscopy

Dairy Product Analysis: Identification of Microorganisms by Mid-Infrared Spectroscopy and Determination of Constituents by Raman Spectroscopy

1995 ◽  
Vol 78 (6) ◽  
pp. 1537-1541 ◽  
Author(s):  
Angela Fehrmann ◽  
Monika Franz ◽  
Andreas Hoffmann ◽  
Lutz Rudzik ◽  
Eberhard Wüst
Keyword(s):  
Raman Spectroscopy ◽  
Infrared Spectroscopy ◽  
Near Infrared ◽  
Dairy Product ◽  
Milk Powder ◽  
Solid Content ◽  
Product Analysis ◽  
Mid Infrared ◽  
Mid Infrared Spectroscopy ◽  
Microbiological Methods

Abstract Identification of microorganisms by traditional microbiological methods is time consuming. The German Federal Health Office has developed a method using mid-infrared spectroscopy to identify microorganisms rapidly. This method has been modified for application to microorganisms important in the dairy industry. Mid- and near-infrared spectroscopies are well-established methods for quantitative measurements of fat, protein, lactose, and solid content in a variety of products. A disadvantage of both methods is the huge absorption due to water; extraction of other components is complicated and can be achived only statistically. With Raman spectroscopy, water causes less absorption. We investigated the use of Raman spectroscopy as a quantitative method for milk powder.

Modification of PEDOT:PSS Surface by RGD Peptide

2019 ◽  
Vol 955 ◽  
pp. 68-73
Author(s):  
Šárka Tumová ◽  
Romana Malečková ◽  
Vojtěch Enev ◽  
Stanislav Stříteský ◽  
Jan Víteček ◽  
...  
Keyword(s):  
Contact Angle ◽  
Raman Spectroscopy ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Uv Light ◽  
Coupling Reaction ◽  
Contact Angle Measurement ◽  
Angle Measurement ◽  
Rgd Peptide ◽  
Novel Technique

In this paper, a novel technique for modification of PEDOT:PSS surface by the arginine-glycine-aspartic (RGD) acid, using a bifunctional photolinker sulfosuccinimidyl 6-(4’-azido-2’-nitrophenylamino) hexanoate (sulfo-SANPAH), is presented. The technique is based on the UV light initialized immobilization of the photolinker to the surface of the polymer and subsequent link of the RGD peptide to the photolinker via coupling reaction. The aim of this modification is the improvement of the biocompatibility and hydrophilicity of the polymer PEDOT:PSS. To confirm if the process of conjugation of RGD peptide to the surface of the polymer PEDOT:PSS was successful, the contact angle measurement, Fourier transform infrared spectroscopy, Raman spectroscopy and elemental analysis was performed. All of the obtained results indicate the conjugation of RGD peptide to the PEDOT:PSS surface was successful.

Control of Photo-Induced Degradation in a-Si:H Prepared from Xe-Diluted Silane

1991 ◽  
Vol 219 ◽  
Author(s):  
Satoshi Mashima ◽  
Kazuhiro Hasezaki ◽  
Atsushi Suzuki ◽  
Peter J. McElheny ◽  
Akihisa Matsuda
Keyword(s):  
Raman Spectroscopy ◽  
Infrared Spectroscopy ◽  
Electron Spin Resonance ◽  
Electron Spin ◽  
Thermal Evolution ◽  
Dilution Method ◽  
Film Properties ◽  
Common Features ◽  
Spin Resonance

ABSTRACTFilms were prepared by the Xe-dilution method in an attempt to mimic the microstructure found in low-photodegradation deuterated films which show a greater number of clustered deuterium and microvoids when compared to conventional hydrogenated films. Common features were found for the light soaking behaviors in the film properties characterized by the electron spin resonance, gas thermal evolution, Raman spectroscopy, and infrared spectroscopy among deuterated, conventional hydrogenated, and Xe-diluted films.

Spectral Interpretation and Qualitative Analysis of Organophosphorus Pesticides Using FT-Raman and FT-Infrared Spectroscopy

1996 ◽  
Vol 50 (5) ◽  
pp. 565-571 ◽  
Author(s):  
Peter A. Tanner ◽  
Kim-Hung Leung
Keyword(s):  
Raman Spectroscopy ◽  
Infrared Spectroscopy ◽  
Infrared Spectra ◽  
Temperature Effects ◽  
Organophosphorus Pesticides ◽  
Spectral Interpretation ◽  
Ft Raman Spectroscopy ◽  
Safe Technique ◽  
Characteristic Group ◽  
Ft Raman

FT-Raman spectroscopy is a selective and safe technique for the qualitative identification of organophosphorus pesticides and is not accompanied by sample photodecomposition. Spectra of 14 target pesticides were recorded, and the phosphorus characteristic group frequencies are discussed. Preliminary investigations of solvent and temperature effects upon the infrared spectra were also carried out.

Dehydrogenation and Polymerization of TiOxHy Films in Obtaining Anatase Coating at Low Temperature

2002 ◽  
Vol 749 ◽  
Author(s):  
Kouichi Takayama ◽  
Shigeo Ohshio ◽  
Hidetoshi Saitoh
Keyword(s):  
Raman Spectroscopy ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Low Temperature ◽  
Vapor Deposition ◽  
Crystal Size ◽  
Chemical Vapor ◽  
Amorphous Films ◽  
X Ray ◽  
Titanium Tetra Isopropoxide

ABSTRACTChemical-vapor-deposition of titanium tetra-isopropoxide (TTIP) under the atmosphere at low temperature has been conducted. The structure of the obtained films was assessed using Fourier transform infrared spectroscopy, X-ray diffractometry and Raman spectroscopy. These analyses indicated that amorphous TiOxHy films were obtained at gas temperatures in the range of 150–300 °C, and crystalline anatase-TiO2 film was formed at 350 °C. This distinction is accounted for by plausible chemical reactions as follows; the hydroxyl reaction of TTIP below 350 °C promotes the formation of the amorphous TiOxHy. As the temperature goes up to 350 °C, dehydrogenation of the TiOxHy films promotes to form crystalline TiO2. Also the obtained amorphous films were annealed for 10 min under the atmosphere in assessing the transformation proceeding in the solid state. The structural change is shown at 350 °C, indicating that the crystalline phase would be formed via dehydrogenation and polymerization on the surface of the amorphous phase under the atmosphere. The crystal size of the annealed films was evaluated in assessment for the transformation.

Near-Infrared Spectroscopy for Cocrystal Screening. A Comparative Study with Raman Spectroscopy

2008 ◽  
Vol 80 (20) ◽  
pp. 7755-7764 ◽  
Author(s):  
Morten Allesø ◽  
Sitaram Velaga ◽  
Amjad Alhalaweh ◽  
Claus Cornett ◽  
Morten A. Rasmussen ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Infrared Spectroscopy ◽  
Comparative Study ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Cocrystal Screening

Effect of Oxidation Condition on the Synthesis of Graphene Nanosheets and the Electrical Properties of Poly (Trimethylene Terephthalate) Composites Prepared Using these Nanosheets

2015 ◽  
Vol 749 ◽  
pp. 202-205
Author(s):  
Chien Lin Huang ◽  
Wei Zhe Xu ◽  
Syuan Hua Wu ◽  
Wen Cheng Chen ◽  
Jia Horng Lin
Keyword(s):  
Raman Spectroscopy ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Electrical Properties ◽  
Graphene Nanosheets ◽  
Thermal Reduction ◽  
Oxidation Condition ◽  
Solution Blending ◽  
Trimethylene Terephthalate ◽  
Effect Of Oxygen

Graphene nanosheets (GNSs) with different oxygen contents crucially affect the performance of polymer composites. In this study, we compared GNSs prepared from graphite oxide (GO) using three different concentrations of potassium permanganate and thermal reduction of GO at 1050 °C. The structural properties of GO and GNSs were investigated by Fourier transform infrared spectroscopy and Raman spectroscopy. Moreover, an effective coagulation method was used to prepare poly (trimethylene terephthalate) (PTT) composites filled with well-dispersed GNSs by selecting suitable solvents for solution blending. The electrical properties of PTT/GNSs were investigated to reveal the effect of oxygen content of GNSs.

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