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1,587 Newest Publications about the topic spectrometers


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Development of an energy‐dispersive X‐ray spectroscopy analyzer employing superconducting tunnel junction array detectors toward nanometer‐scale elemental mapping

18-Jul-2017 | Go Fujii, Masahiro Ukibe, Shigetomo Shiki, Masataka Ohkubo, X-Ray Spectrometry, 2017

Energy‐dispersive X‐ray detectors based on superconducting tunnel junctions (STJs) exhibit at best energy resolution of about 5eV in full width at half‐maximum for soft X‐rays with energy levels of less than ~1keV as well as a large sensitive area (>1mm2) and a high counting rate capability ...


High-Sensitivity Rheo-NMR Spectroscopy for Protein Studies

05-Jul-2017 | Daichi Morimoto; Erik Walinda; Naoto Iwakawa; Mayu Nishizawa; Yasushi Kawata; Akihiko Yamamoto; Masahiro Shirakawa; ..., Analytical Chemistry, 2017

Shear stress can induce structural deformation of proteins, which might result in aggregate formation. Rheo-NMR spectroscopy has the potential to monitor structural changes in proteins under shear stress at the atomic level; however, existing Rheo-NMR methodologies have insufficient sensitivity ...


Polymer:Fullerene Bimolecular Crystals for Near‐Infrared Spectroscopic Photodetectors

04-Jul-2017 | Zheng Tang, Zaifei Ma, Antonio Sánchez‐Díaz, Sascha Ullbrich, Yuan Liu, Bernhard Siegmund, Andreas Mischok, Karl Leo ..., Advanced Materials, 2017

Spectroscopic photodetection is a powerful tool in disciplines such as medical diagnosis, industrial process monitoring, or agriculture. However, its application in novel fields, including wearable and biointegrated electronics, is hampered by the use of bulky dispersive optics. Here, ...


Fully automatic and precise data analysis developed for time‐of‐flight mass spectrometry

01-Jul-2017 | S. Meyer, A. Riedo, M. B. Neuland, M. Tulej, P. Wurz, Journal of Mass Spectrometry, 2017

Scientific objectives of current and future space missions are focused on the investigation of the origin and evolution of the solar system with the particular emphasis on habitability and signatures of past and present life. For in situ measurements of the chemical composition of solid samples ...


On‐line reaction monitoring by mass spectrometry, modern approaches for the analysis of chemical reactions

19-Jun-2017 | Andrew Ray, Tony Bristow, Chris Whitmore, Jackie Mosely, Mass Spectrometry Reviews, 2017

The application of on‐line mass spectrometry for direct analysis of chemical and other types of process continues to grow in importance and impact. The ability of the technique to characterize many aspects of a chemical reaction such as product and impurity formation, along with reactant ...


Sensors, Vol. 17, Pages 1428: Intercomparison of Unmanned Aerial Vehicle and Ground-Based Narrow Band Spectrometers Applied to Crop Trait Monitoring in Organic Potato Production

18-Jun-2017 | Domingues Franceschini, Marston Héracles; Bartholomeus, Harm ; van Apeldoorn, Dirk ; Suomalainen, Juha ; Kooistra, L ..., Sensors, 2017

Vegetation properties can be estimated using optical sensors, acquiring data on board of different platforms. For instance, ground-based and Unmanned Aerial Vehicle (UAV)-borne spectrometers can measure reflectance in narrow spectral bands, while different modelling approaches, like regressions ...


Applying portable Raman spectrometers for field discrimination of sulfates: Training for successful extraterrestrial detection

09-Jun-2017 | Filip Košek, Adam Culka, Petr Drahota, Jan Jehlička, Journal of Raman Spectroscopy, 2017

The presence of sulfates containing Mg, Fe, and Ca (in several hydration states) has been confirmed on Mars from data acquired by both orbital and in‐situ measurements. It has been suggested that the sulfates on Mars originated deep the past from the evaporation of water at accumulation points ...


Ozone induced dissociation on a traveling wave high resolution mass spectrometer for determination of double bond position in lipids

07-Jun-2017 | Ngoc Vu, Jeffery Brown, Kevin Giles, Qibin Zhang, Rapid Communications in Mass Spectrometry, 2017

Abstract Rationale The position of C=C within fatty acyl chains affects the biological function of lipids. Ozone induced dissociation‐mass spectrometry (OzID‐MS) has great potential in determination of lipid double bond position, but has only been implemented on low resolution ion trap mass ...


Using advanced mass spectrometry techniques to fully characterize atmospheric organic carbon: current capabilities and remaining gaps

06-Jun-2017 | G. Isaacman-VanWertz; P. Massoli; R. E. O’Brien; J. B. Nowak; M. R. Canagaratna; J. T. Jayne; D. R. Worsnop; L. Su; ..., Faraday Discussions, 2017

Organic compounds in the atmosphere vary widely in their molecular composition and chemical properties, so no single instrument can reasonably measure the entire range of ambient compounds. Over the past decade, a new generation of in situ, field-deployable mass spectrometers has dramatically ...


Microfluidic Capillary Electrophoresis–Mass Spectrometry for Analysis of Monosaccharides, Oligosaccharides, and Glycopeptides

06-Jun-2017 | Kshitij Khatri; Joshua A. Klein; John R. Haserick; Deborah R. Leon; Catherine E. Costello; Mark E. McComb; Joseph Zaia, Analytical Chemistry, 2017

Glycomics and glycoproteomics analyses by mass spectrometry require efficient front-end separation methods to enable deep characterization of heterogeneous glycoform populations. Chromatography methods are generally limited in their ability to resolve glycoforms using mobile phases that are ...


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