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What does ATR stand for in IR spectroscopy?

Attenuated total reflection

Light scattering

Infrared spectroscopy

Fourier transform infrared spectroscopy

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Journal Article•DOI Validated Approaches for Quantification of Bone Mineral Crystallinity Using Transmission Fourier Transform Infrared (FT-IR), Attenuated Total Reflection (ATR) FT-IR, and Raman Spectroscopy. William Querido, Ramyasri Ailavajhala, M. Padalkar, Nancy Pleshko - Show less +3 more 20 Jul 2018-Applied Spectroscopy 30 Citations	In particular, we present a step forward in advancing the use of the increasingly utilized ATR FT-IR modality for mineral research.
Open access•Journal Article•DOI Infrared Spectra of Uranium Oxides Measured by ATR-FTIR Jong-Goo Kim, Yang-Soon Park, Yeong-Keong Ha, Kyuseok Song - Show less +3 more 01 Dec 2009-Journal of Nuclear Science and Technology 21 Citations	It was confirmed that ATR technology for infrared spectroscopy can be useful for the studies of radioactive materials that are difficult to handle using conventional methods.
Journal Article•DOI Nondestructive Analysis of Biological Materials by ATR/FT-IR Spectroscopy. Part II: Potential of the ATR Method in Clinical Studies of the Internal Organs Y. Ozaki, F. Kaneuchi - Show less +1 more 01 May 1989-Applied Spectroscopy 20 Citations	The ATR technique is an extremely effective means of obtaining in vivo IR spectra of the surface of biological tissues.
Journal Article•DOI Attenuated Total Internal Reflection Infrared Microscopy of Multilayer Plastic Packaging Foils Gerard van Dalen, Patricia C.M. Heussen, Ruud den Adel, Robert B. J. Hoeve - Show less +3 more 01 Jun 2007-Applied Spectroscopy 23 Citations	ATR-FT-IR is superior to the combination of these techniques because it delivers both spatial and chemical information.
Journal Article•DOI Influence of Anomalous Dispersion on the ATR Spectra of Aqueous Solutions Jean-Joseph Max, Camille Chapados - Show less +1 more 01 Sep 1999-Applied Spectroscopy 53 Citations	As long as the proper material is used in the ATR cell and the concentration of water is not significantly decreased, then the IR-ATR measurements directly reflect the chemistry of the sample.
Journal Article•DOI Development of a near-infrared/mid-infrared dual-region spectrometer for online process analysis. Takuma Genkawa, Takuma Genkawa, Masahiro Watari, Masahiro Watari, Takashi Nishii, Yukihiro Ozaki - Show less +5 more 01 Jul 2012-Applied Spectroscopy 17 Citations	This result reveals that the same chemical changes are observed in both transmission NIR and ATR mid-IR spectra.

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What does a higher intensity in FTIR ATR signify for a recycled polymer?5 answersA higher intensity in FTIR ATR spectra of a recycled polymer indicates the presence of radiation-induced cross-linking reactions prevailing over polymer chain cleavage reactions and intermolecular bond breaking. Additionally, the perturbation of water sorbed into polymers like PET and PVC, as observed through FTIR ATR, shows evidence of the breaking of the water network within the polymer matrix, with the extent of perturbation depending on the polymer's properties. Furthermore, FTIR ATR spectroscopy combined with chemometric methods like PCA and iPLS-R has been utilized to classify and determine the compositional fraction of recycled polymer mixtures, showcasing the potential for effective identification and separation of plastics in waste streams.

What is FT-IR spectroscopy?5 answersFT-IR spectroscopy is a technique that uses Fourier transform infrared radiation to measure the spectrum of electromagnetic waves. It indirectly measures the vibrational response of molecules through the absorption spectrum. FT-IR spectroscopy is versatile and can be used in various fields such as science, technology, pharmaceuticals, cosmetics, and food industries. It is a fast and non-destructive analytical method that can be used for qualitative and quantitative analysis of substances. The technique involves the use of a super-continuum laser as a light source, which provides a broad spectral bandwidth and high spatial coherence. The core component of an FT-IR spectrometer is an interferometer, which allows for precise signal sampling. FT-IR spectroscopy is based on the principle that the electric dipole moment of a molecule changes during its vibration, resulting in infrared absorption. Overall, FT-IR spectroscopy is a powerful tool for structural analysis and has a wide range of applications in various industries and scientific domains.

What is Near Infrared Spectroscopy?5 answersNear-infrared spectroscopy (NIR) is an analytical technique that measures the absorption bands produced by overtones and combined excitations to characterize molecular structure. NIR spectroscopy has seen rapid growth and is widely used in various fields such as bioscience, medical diagnosis, food science, and agriculture. It offers advantages such as non-invasiveness, deep tissue penetration, and rapid analysis. NIR spectroscopy is used in bioanalysis and biomedical diagnosis of body fluids, biological samples, and plant medicines. It is also utilized in medical diagnosis due to its molecular distinctiveness, benignity to biologic matter, and use of nonionizing radiation. Signal enhancement methodologies, including the use of nanoparticles, are discussed to improve sensitivity. In the food industry, NIR spectroscopy is used to determine proximate chemical compositions of food ingredients and products, and it is also applied to evaluate functional properties in dairy and cereals. NIR spectroscopy has also been developed as a non-invasive technique for biomedical applications, including near-infrared optical tomography in medicine. The continuous progress in technology has led to the development of portable, miniaturized NIR spectrometers, enabling on-site analysis in various fields such as natural products, agro-food items, and environmental monitoring.

What is the use of infrared spectroscopy?5 answersInfrared spectroscopy is a technique used to identify and determine components in various organic or inorganic compounds. It is commonly used in qualitative and quantitative analyses, including the estimation of compounds through measuring the transmitted or absorption intensity of active groups. In the field of heterogeneous catalysis research and development, infrared spectroscopy is used for structural characterization, such as identifying surface metal-oxygen bonds and surface acid sites. Additionally, infrared spectroscopy can be used to automatically identify functional groups in molecules without the need for database searching or peak matching methods. The technique is also powerful for structural analysis, as it allows for the identification of functional groups in solids, liquids, or gases by analyzing obtained spectra. In the analysis of food toxins, infrared spectroscopy is a non-destructive and rapid method for the detection and characterization of contaminants in high throughput.

What is ANR?3 answersANR, or Articulated Neural Rendering, is a novel framework based on Deferred Neural Rendering (DNR) that addresses the limitations of DNR for virtual human avatars. It combines traditional rendering with neural networks to achieve a balance between computational complexity and realism in the resulting images. ANR specifically focuses on rendering articulating objects using skinned meshes, which allows for a wide range of applications. The framework takes into account deformations not captured in the mesh, alignment inaccuracies, and dynamics that can affect the DNR pipeline. ANR has been shown to outperform DNR and other methods specialized for avatar creation and animation, as demonstrated in user studies and quantitative evaluation metrics. It offers better temporal stability, level of detail, and plausibility in the rendered avatars.

What does ATR stand for in Infrared Spectroscopy?5 answers

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