Results 191 to 200 of about 182,803 (252)

Direct Comparison of MRM-MS and PRM-MS Methods for Quantitative Ganglioside Analysis. [PDF]

J Am Soc Mass Spectrom
Sanni A, Koraich A, Nwaiwu J, Delkhosh AS, Mechref Y.   +4 more
europepmc   +1 more source

Experimental methods in chemical engineering: Temperature‐programmed oxidation—TPO

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed oxidation (TPO) probes the oxidative capacity and redox properties of solid materials—catalysts, metal oxides, perovskites, and carbonaceous deposits. It identifies coke type, distribution, and reactivity. TPO instruments pass an oxidizing gas (diluted O2$$ {\mathrm{O}}_2 $$, air, or less commonly N2O$$ {\mathrm{N}}_2 ...
Gholamreza Roohollahi, Jildimara de Jesus Santana, Alexander R. P. Harrison, Sara Andreoli, Ewa Marek, Stuart Scott, Mohammad Latifi, Gregory S. Patience   +7 more
wiley   +1 more source

Lu⁺ optical frequency references with accuracy verified at the 19th digit. [PDF]

Nature
Arnold KJ, Lee MDK, Zhao Q, Qin Q, Zhang Z, Jayjong N, Barrett MD.   +6 more
europepmc   +1 more source

Molten‐Salt‐Mediated Chemical Looping Oxidative Dehydrogenation of Ethane with In‐Situ Carbon Capture and Utilization

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
A sustainable alternative to steam cracking, the molten‐salt‐mediated oxidative dehydrogenation (MM‐ODH) of ethane (C2H6) in Li2CO3‐Na2CO3‐K2CO3 (LNK) couples thermal cracking with melt‐mediated CO2 capture to realize commercially competitive C2H4 and CO yields. LNK composition strongly influences MM‐ODH process outcomes.
Kyle Vogt‐Lowell, Dennis Chacko, Kunran Yang, Jace Carsten, Junchen Liu, Matthew Housley, Fanxing Li   +6 more
wiley   +1 more source

Six-Fold Methyl Internal Rotation and ¹⁴N Nuclear Quadrupole Coupling in the Microwave Spectra of <i>N</i>-Methylmaleimide and <i>N</i>-Methylsuccinimide. [PDF]

J Phys Chem A
Khemissi S, Tiu CA, Kleiner I, Nguyen HVL, Crabtree KN, Hernandez-Castillo AO.   +5 more
europepmc   +1 more source

Backward Plasma Acceleration of Aluminum, Copper, Silver, and Tantalum Ions From 1010 up to 1015 W/cm2 Pulse Laser Intensity

Contributions to Plasma Physics, EarlyView.
ABSTRACT Measurements of ion acceleration in laser‐generated plasma obtained at intensities from 1010 up to 1015 W/cm2 using IR laser ablation of aluminum, copper, silver, and tantalum in high vacuum are presented. At low intensity, data were acquired from the MIFT Department of Messina University (Italy) using a Q‐switched Nd:YAG laser operating at ...
L. Torrisi, M. Cutroneo, A. Torrisi
wiley   +1 more source

Exploration of the van der Waals Region of the NO <i>A</i>²Σ⁺ + N₂ <i>X</i>¹Σ_<i>g</i>⁺ Collision Complex. [PDF]

J Phys Chem A
De Matos Loja A, Costen ML, Paterson MJ.
europepmc   +1 more source

Advantages of Pulsed Laser Ion Source (LIS) at an Intensity of About 1010 W/cm2 for Heavy‐Ion Injection Into High‐Energy Accelerators

Contributions to Plasma Physics, EarlyView.
ABSTRACT At the Laser Plasma Physics laboratories of the University of Messina, an experimental platform for generating and accelerating low‐energy ions (keV) using pulsed lasers and for their potential applications has been put into operation. A Q‐switched Nd:YAG laser produces the beam for the system, operating at 1064 nm.
L. Torrisi, M. Cutroneo, A. Torrisi
wiley   +1 more source

Aliasing Artifacts in Multielemental LA-ICP-TOFMS Mapping: An Old Problem Revisited. [PDF]

Anal Chem
Cernatič F, Mervič K, Schlatt L, Šala M.   +3 more
europepmc   +1 more source

Detection of Nitazenes in the Illicit Drug Supply Utilizing Precursor Ion Scan Methods With Paper Spray Mass Spectrometry

Drug Testing and Analysis, EarlyView.
Nitazenes are increasingly present in the illicit drug supply, complicating harm reduction efforts. We have developed a rapid, nontargeted precursor ion scan method to detect emerging nitazenes in real‐world opioid samples. The method identified multiple nitazenes, often replacing pharmaceutical opioids or mixed with fentanyl and benzodiazepines ...
Allie Miskulin, Irene Shkolnikov, Jindar Sboto, Collin Kielty, Bruce Wallace, Chris G. Gill, Dennis K. Hore   +6 more
wiley   +1 more source