Results 261 to 270 of about 1,320,406 (342)

Laser Ablation Sampling With Low-Power Plasma: A LA-MIP-MS Instrument for Spaceflight. [PDF]

Rapid Commun Mass Spectrom
Farcy BJ, Graham J, Raith M, Arevalo R, Taghioskoui M, Budinoff S, McAdam A, Lee J, Danell RM, Kaplan DA, Gundersen C, McDonough WF.   +11 more
europepmc   +1 more source

Liquid‐phase oxidation of furfural catalyzed by magnetically separable metal oxide nanoparticles deposited on silica gel

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Oxidation of furfural (FF), a bio‐based platform chemical, was investigated using a range of iron‐, vanadium‐ and iron–zinc‐oxalates supported on silica gel (FeVOx@silica and FeZnOx@silica, respectively) as precursor for FeV@silica and FeZn@silica oxide catalysts and H2O2 as a green oxidant.
Alexander Pokutsa, Alina Mariana Balu, Rafael Luque   +2 more
wiley   +1 more source

Uronium from X-ray-Desorbed Urea Enables Sustainable Ultrasensitive Detection of Amines and Semivolatiles. [PDF]

Anal Chem
Shcherbinin A, Finkenzeller H, Partovi F, Vinkvist N, Kontro J, Boyer M, Mikkilä J, Iyer S, Mikkilä J, Juuti P, Sarnela N, Kangasluoma J, Rissanen M.   +12 more
europepmc   +1 more source

Steric modulation of nitric oxide photodissociation kinetics in iron–nitrosyl complexes

Bulletin of the Korean Chemical Society, EarlyView.
Subtle steric modification within a pyridinophane ligand framework modulates nitric oxide photodissociation kinetics in iron–nitrosyl complexes. Structural and electrochemical analyses reveal that modest ligand‐environment variations are reflected in differences in NO photoreactivity.
Jisu Choe, Jaeheung Cho
wiley   +1 more source

Application of a Chemical Index to Aerosol Mass Spectrometry: Delta Plots and Functional Group Distributions. [PDF]

ACS EST Air
O'Brien RE, Canagaratna M, He X, Kim Y, Nix A, Kenagy HS.   +5 more
europepmc   +1 more source

The Investigation of the Deactivation of the Metal‐Modified ZSM‐5 Zeolites for the Catalytic Dehydration of Glycerol

Carbon and Hydrogen, EarlyView.
During the glycerol dehydration over ZSM‐5 zeolite, the modification by metal promoters results in the suppression of the bicyclic and tricyclic aromatics over the modified ZSM‐5 zeolite catalysts. However, the issue of the fast deactivation still remains an apparent challenge, which requires more different perspectives to understand the deactivation ...
Yonghua Yu, Lili Yu, Yunxuan Ji, Dazhi Zhang, Hui Ding, Peidong Li, Shengjun Huang, Jiaxu Liu   +7 more
wiley   +1 more source

Spot on: A Laser Micromachining-Based Approach to Improve Dried Matrix Spot Preparation with Proof-of-Principle Analytical Demonstrations Using Ambient Ionization Mass Spectrometry. [PDF]

Micromachines (Basel)
Reddy DO, Hassan M, Graham JO, Viggers J, Williams KE, Ellis RE, Covey TR, Shelley JT, Oleschuk RD.   +8 more
europepmc   +1 more source

Notes on Ionization in the Solar Atmosphere

The Astrophysical Journal, 1922
openaire   +1 more source

Insight of Elementary Steps on the Polyethylene and Polypropylene Co‐Pyrolysis

Carbon and Hydrogen, EarlyView.
Pyrolysis of PP initiates first, accelerating PE cracking via secondary radical transfer, leading to n‐hydrocarbon yield enhancement. Py–GC/MS and nanoreactor computation are in agreement on the elementary step proposal. ABSTRACT Pyrolysis with gas chromatography & mass spectrometry (Py–GC/MS) technique was employed to analyze the yield variation of ...
Naiwen Xu, Liang Zou, Na Hua, Chao Xu, Zhenggang Lan, Qi Ou, Bo Peng   +6 more
wiley   +1 more source

The hidden fluorine: a critical review of analytical methods for unmasking PFAS and closing fluorine mass balance in environmental samples. [PDF]

Anal Bioanal Chem
Balasuriya D, Aguilar JMN, Hoepker AC, Wallace JS, Aga DS.   +4 more
europepmc   +1 more source