Results 61 to 70 of about 478,907 (316)
Activation cross sections of α-induced reactions on $^{nat}$Zn for Ge and Ga production [PDF]
Published in Nucl. Instr. Meth. B 427 (2018) 916, 2018 The production cross sections of $^{68,69}$Ge and $^{66,67}$Ga by \alpha-induced reactions on $^{nat}$Zn have been measured using the stacked-foil activation method and off-line \gamma-ray spectrometry from their threshold energies to 50.7 MeV. The derived cross sections were compared with the previous experimental data and the calculated values in the
arxiv +1 more source
Analysis of biogenic carbonyl compounds in rainwater by stir bar sorptive extraction technique with chemical derivatization and gas chromatography-mass spectrometry [PDF]
, 2017 Stir bar sorptive extraction is a powerful technique for the extraction and analysis of organic compounds in aqueous matrices. Carbonyl compounds are ubiquitous components in rainwater, however, it is a major challenge to accurately identify and ...
Aguirre +32 more
core +1 more source
Advanced Functional Materials, EarlyView.Copper sulfide based electrocatalysts for CO2 conversion are selective for production of formate as major product. Transformations under electrochemical conditions result in significant sulfur loss, and this study examines the nature of how persistent, residual sulfur (observed as surface SO42– species and S dissolved in the electrolyte) can sustain ...
Sasho Stojkovikj +8 more
wiley +1 more source
Preparation of flaxseed for lignan determination by gas chromatography-mass spectrometry method
Czech Journal of Food Sciences, 2012 Since 1980s, several methods for the determination of lignans in food samples have been developed depending on the types of lignans and foods analysed, but mostly on flaxseed as a reference food.
Hrvoje Sarajlija +5 more
doaj +1 more source
Rapid Identification of the Mycotoxin Patulin by Gas Chromatography–Mass Spectrometry
Biology and Life Sciences Forum, 2023 Patulin (PAT) is one of the most common mycotoxins produced by Penicillium and Aspergillus species and is often associated with fruits and fruit by-products, mostly apple derivatives, although it has been detected in infant food and cereals.
Adrián A. Monteagudo +6 more
doaj +1 more source
Influence of Mg doping on In adsorption and In incorporation in (In,Ga)N superlattices [PDF]
arXiv, 2020 We present a detailed investigation of the mechanisms at play for the incorporation of In and Mg on the GaN(0001) surface during plasma-assisted molecular beam epitaxy (PAMBE). First, we have studied the kinetics of In desorption in the presence of Mg either without or with N supply from the plasma cell by quadrupole mass spectrometry (QMS) in the line
arxiv
Measurements of extremely low radioactivity levels in BOREXINO [PDF]
Astropart.Phys.18:1-25,2002, 2001 The techniques researched, developed and applied towards the measurement of radioisotope concentrations at ultra-low levels in the real-time solar neutrino experiment BOREXINO at Gran Sasso are presented and illustrated with specific results of widespread interest.
arxiv +1 more source
Advanced Functional Materials, EarlyView.This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun +7 more
wiley +1 more source
Dissociative Electron Attachment to the Nitroamine HMX (Octahydro-1,3,5,7-Tetranitro-1,3,5,7-Tetrazocine) [PDF]
Journal of The American Society for Mass Spectrometry, 2013,
Volume 24, Issue 5, pp 744-752,, 2016 In the present study, dissociative electron attachment (DEA) measurements with gas phase HMX, octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine, $C_4H_8N_8O_8$, have been performed by means of a crossed electron-molecular beam experiment. The most intense signals are observed at 46 and 176u and assigned to $NO_{2}^{-}$ and $C_3H_6N_5O_{4 ...
arxiv +1 more source
Identification of a Widespread Palmitoylethanolamide Contamination in Standard Laboratory Glassware. [PDF]
, 2017 Introduction: Fatty acid ethanolamides (FAEs) are a family of lipid mediators that participate in a host of biological functions. Procedures for the quantitative analysis of FAEs include organic solvent extraction from biological matrices (e.g., blood ...
Angelini, Roberto +3 more
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