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1,608 Newest Publications about the topic spectrometers

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IMTBX and Grppr: Software for Top-Down Proteomics Utilizing Ion Mobility-Mass Spectrometry

16-Jan-2018 | Dmitry M. Avtonomov; Daniel A. Polasky; Brandon T. Ruotolo; Alexey I. Nesvizhskii, Analytical Chemistry, 2018

Top-down proteomics has emerged as a transformative method for the analysis of protein sequence and post-translational modifications (PTMs). Top-down experiments have historically been performed primarily on ultrahigh resolution mass spectrometers due to the complexity of spectra resulting from ...

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Sensors, Vol. 18, Pages 223: Smartphone Spectrometers

14-Jan-2018 | McGonigle, Andrew J.S.; Wilkes, Thomas C.; Pering, Tom D.; Willmott, Jon R.; Cook, Joseph M.; Mims, Forrest M.; Pari ..., Sensors, 2018

Sensors, Vol. 18, Pages 223: Smartphone Spectrometers Sensors doi: 10.3390/s18010223 Authors: Andrew McGonigle Thomas Wilkes Tom Pering Jon Willmott Joseph Cook Forrest Mims Alfio Parisi Smartphones are playing an increasing role in the sciences, owing to the ubiquitous ...

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An optical configuration for fastidious STEM detector calibration and the effect of the objective‐lens pre‐field

08-Jan-2018 | L. JONES, A. VARAMBHIA, H. SAWADA, P.D. NELLIST, Journal of Microscopy, 2018

Summary In the scanning transmission electron microscope, an accurate knowledge of detector collection angles is paramount in order to quantify signals on an absolute scale. Here we present an optical configuration designed for the accurate measurement of collection angles for both ...

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Compressed NMR: Combining Compressive Sampling and Pure Shift NMR Techniques

26-Dec-2017 | Juan A. Aguilar, Alan M. Kenwright, Magnetic Resonance in Chemistry, 2017

Abstract Historically, the resolution of multidimensional NMR has been orders of magnitude lower than the intrinsic resolution that NMR spectrometers are capable of producing. The slowness of Nyquist sampling, as well as the existence of signals as multiplets instead of singlets have been two ...

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Fast Orthogonal Separation by Superposition of Time of Flight and Field Asymmetric Ion Mobility Spectrometry

22-Dec-2017 | Alexander Bohnhorst; Ansgar T. Kirk; Marc Berger; Stefan Zimmermann, Analytical Chemistry, 2017

Ion mobility spectrometry is a powerful and low-cost technique for the identification of chemical warfare agents, toxic chemicals, or explosives in air. Drift tube ion mobility spectrometers (DT-IMS) separate ions by the absolute value of their low field ion mobility, while field asymmetric ion ...

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Desktop NMR and Its Applications From Materials Science To Organic Chemistry

12-Dec-2017 | Bernhard Blümich, Kawarpal Singh, Angewandte Chemie International Edition, 2017

Abstract NMR spectroscopy is an indispensable method of analysis in chemistry, which until recently suffered from high demands for space, high costs for acquisition and maintenance, and operational complexity. This has changed with the introduction of compact NMR spectrometers suitable for ...

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Sensors, Vol. 17, Pages 2693: Comparison of Benchtop Fourier-Transform (FT) and Portable Grating Scanning Spectrometers for Determination of Total Soluble Solid Contents in Single Grape Berry (Vitis vinifera L.) and Calibration Transfer

22-Nov-2017 | Xiao, Hui ; Sun, Ke ; Sun, Ye ; Wei, Kangli ; Tu, Kang ; Pan, Leiqing, Sensors, 2017

Sensors, Vol. 17, Pages 2693: Comparison of Benchtop Fourier-Transform (FT) and Portable Grating Scanning Spectrometers for Determination of Total Soluble Solid Contents in Single Grape Berry (Vitis vinifera L.) and Calibration Transfer Sensors doi: 10.3390/s17112693 Authors: Hui ...

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Sensors, Vol. 17, Pages 2612: Gas Measurement Using Static Fourier Transform Infrared Spectrometers

13-Nov-2017 | Köhler, Michael H.; Schardt, Michael ; Rauscher, Markus S.; Koch, Alexander W., Sensors, 2017

Sensors, Vol. 17, Pages 2612: Gas Measurement Using Static Fourier Transform Infrared Spectrometers Sensors doi: 10.3390/s17112612 Authors: Michael Köhler Michael Schardt Markus Rauscher Alexander Koch Online monitoring of gases in industrial processes is an ambitious task due ...

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Ion traps in modern mass spectrometry

30-Oct-2017 | Dirk Nolting, Robert Malek, Alexander Makarov, Mass Spectrometry Reviews, 2017

This review is devoted to trapping mass spectrometry wherein ions are confined by electromagnetic fields for prolonged periods of time within limited volume, with mass measurement taking place within the same volume. Three major types of trapping mass spectrometers are discussed, specifically ...

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Sensors, Vol. 17, Pages 2265: Correction: Domingues Franceschini, M.H.; et al. Intercomparison of Unmanned Aerial Vehicle and Ground-Based Narrow Band Spectrometers Applied to Crop Trait Monitoring in Organic Potato Production. Sensors 2017, 17, 1428

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

Sensors, Vol. 17, Pages 2265: Correction: Domingues Franceschini, M.H.; et al. Intercomparison of Unmanned Aerial Vehicle and Ground-Based Narrow Band Spectrometers Applied to Crop Trait Monitoring in Organic Potato Production. Sensors 2017, 17, 1428 Sensors doi: ...

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