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Wyniki wyszukiwania dla: RAMAN%20SPECTROSCOPY

  • Noise in biological Raman spectroscopy

    Publikacja

    - Rok 2015

    Raman spectroscopy is a widely used method to investigate chemical molecules by analyzing their vibrational transitions. It utilizes inelastic scattering of the laser light irradiating the investigated object. The scattered light requires appropriate filtering to reduce dominant laser light and expose much weaker components having shifted wavelengths of a characteristic spectral pattern. These components are measured by dispersing...

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  • Raman spectroscopy in investigation of rheometric processes

    Publikacja

    - Rok 2005

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  • Application of NIR and Raman Spectroscopy in Biotechnology

    Publikacja

    - Rok 2014

    Studium Press LLC, U.S.A. 

  • Raman spectroscopy in investigation of rheometric processes

    Publikacja

    - Rok 2005

    Praca porusza problem analizy cienkiej warstwy przyściennej -oleju za pomocą spektroskopii ramanowskiej. Parametry (grubość, struktura chemiczna) cienkiej warstwy przyśniennej są istotną informacją do oceny przebiegu procesu wyciskania past modelowych. Zaprezentowano wyniki pomiarów oraz konstrukcje ramanowskich układów pomiarowych.

  • Anatomy of noise in quantitative biological Raman spectroscopy

    Publikacja
    • J. Smulko
    • N. Chari Dingari
    • J. S. Soares
    • I. Barman

    - BIOANALYSIS - Rok 2014

    Raman spectroscopy is a fundamental form of molecular spectroscopy that is widely used to investigate structures and properties of molecules using their vibrational transitions. It relies on inelastic scattering of monochromatic laser light irradiating the specimen. After appropriate filtering the scattered light is dispersed onto a detector to determine the shift from the excitation wavelength, which appears in the form of...

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  • Sensing of anesthetic drugs in blood with Raman spectroscopy

    Publikacja

    - Rok 2015

    A proof-of-concept study of a Raman spectroscopy-based approach for measuring the content of anesthesia drugs in blood is presented. Spectra of spiked blood from several patients exhibit prominent changes in regions associated with the drug.

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  • Detection of propofol concentrations in blood by Raman spectroscopy

    Publikacja

    - Rok 2015

    In this paper we present a proof-of-concept of a Raman spectroscopy-based approach for measuring the content of propofol, a common anesthesia drug, in whole human blood, and plasma, which is intended for use during clinical procedures. This method utilizes the Raman spectroscopy as a chemically–sensitive method for qualitative detection of the presence of a drug and a quantitative determination of its concentration. A number of...

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  • Noise sources in Raman spectroscopy of biological objects

    Publikacja

    - Rok 2017

    We present an overview of noise sources deteriorating the quality of the recorded biological Raman spectra and the ability to determine the specimen composition. The acquired Raman spectra exhibit intense additive noise components or drifts because of low intensity of the scattered light. Therefore we have to apply expensive or bulky measurement setups to limit their inherent noise or to apply additional signal processing to reduce...

  • Analysis and characterization of coordination compounds by resonance Raman spectroscopy

    Publikacja

    - COORDINATION CHEMISTRY REVIEWS - Rok 2012

    Resonance Raman spectroscopy has become a powerful tool to study excited-state geometries, excited-state charge distributions and photoinduced reaction dynamics in coordination compounds. Due to their rich photophysical properties coordination compounds are utilized for a variety of applications ranging from DNA sensing to photocatalysis. This review features recent applications of various resonance Raman scattering techniques...

  • Multiphase separated polyurethanes studied by micro Raman spectroscopy.

    Publikacja

    - MACROMOLECULAR RAPID COMMUNICATIONS - Rok 2003

    Przedmiotem badań były poliuretany o zawartości 30% segmentów sztywnych,charakteryzujące się obecnością globul i sferolitów. Badania za pomocą mikro Ramana wykazały różny skład chemiczny w wymienionych mikroobszarach. W globulach stwierdzono zanik obecności segmentów giętkich lub ich bardzo znikomą ilość w porównaniu z matrycą i sferolitami.