Results 121 to 130 of about 64,153 (306)

Micro‐QuEChERS Extraction for Broad‐Spectrum LC‐QQQ‐MS Quantification of Nitazene Analogs in Plasma: A Validated Method With Casework Application

Drug Testing and Analysis, EarlyView.
Micro‐QuEChERS sample preparation coupled to LC‐QQQ‐MS enabled sensitive quantification of nitazene analogs in 100 μL of plasma. The validated method provided low detection limits and was successfully applied to an authentic intoxication case involving N‐pyrrolidino protonitazene, supporting clinical and forensic toxicology workflows.
Karla A. O. Souza, Náthaly C. B. F. Santos, Rafael Lanaro, Sara E. Walton, Alex J. Krotulski, Barry K. Logan, Mauricio Yonamine, Jose Luiz Costa   +7 more
wiley   +1 more source

Revealing the Assembly Design of a BYD 46120 LFP Cylindrical Cell Through Systematic Teardown Analysis

EcoEnergy, EarlyView.
The internal assembly design of a commercial BYD 46120 LFP cylindrical lithium‐ion battery was revealed through systematic mechanical teardown and multi‐scale analysis. Key features, including a tabless electrode architecture, engineered current‐collecting disks, separator‐core mandrel design, and electrolyte composition, are reconstructed to provide ...
Rae Hyeong Lee, Ji Han Park, Jin Yeong Choi, Jae Bin Park, Sang Hwan Son, Jin Hong Lee, Minjoon Park   +6 more
wiley   +1 more source

Simultaneous determination of 22 volatile organic compounds in urine of automotive spray painting workers using static headspace gas chromatography-mass spectrometry

环境与职业医学
BackgroundAutomotive repair workers are exposed to a wide variety of volatile organic compounds (VOCs) during painting operations, which poses significant health risks.
Mengmeng LIU, Junyu PAN, Baofeng LIU, Qiang ZENG   +3 more
doaj   +1 more source

DETERMINATION OF GEOSMIN AND 2-METHYLISOBORNEOL IN WATER BY HEADSPACE LIQUID-PHASE MICROEXTRACTION COUPLED WITH GAS CHROMATOGRAPHY-MASS SPECTROMETRY

, 2011
Geosmin (GSM) and 2-methylisoborneol (MIB) were extracted from water samples, adsorbed in organic solvent microdrop by headspace liquid-phase microextraction (HS-LPME), and were analyzed by gas chromatography-mass spectrometry (GC-MS).
Liu, Dongyan, Lingxin Chen, Wenhui Lu, Jiping Ma, Dongyan Liu, Chen, Lingxin, Li, Jinhua, Ma, Jiping, Song, Zhiwen, Lu, Wenhui, Jinhua Li, Zhiwen Song   +11 more
core   +1 more source

Gradient p‐p Orbital Hybridization in Bismuth‐Doped Crystalline Carbon Nitride for Dual‐Functional Carbon‐to‐Carbon Valorization

EcoEnergy, EarlyView.
Schematic illustration comparing the charge transfer dynamics and catalytic reaction over the (left) pristine carbon nitride and (right) Bi‐doped carbon nitride photocatalysts. In the pristine system, random charge diffusion and rapid recombination limit catalytic efficiency. In contrast, the Bi‐doped system establishes a robust internal electric field
Joel Jie Foo, Valerine Khoo, Zi‐Jing Chiah, Sue‐Faye Ng, Xianhai Zeng, Wee‐Jun Ong   +5 more
wiley   +1 more source

Developing a Suitable Anion Exchange Layer Structure for Pure–Water Fed Bipolar Membrane CO2 Electrolysis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A porous anion exchange layer (AEL) is implemented in a forward‐biased bipolar membrane CO2 electrolyzer to suppress carbonate crossover, support CO2 regeneration and maintain cathode alkalinity. Two fabrication strategies are compared—deposition on a silver gas diffusion electrode (GDE) or on the CEM—showing that a porous AEL‐coated GDE provides the ...
Henning Lorenz, Nico Roubicek, Simon Thiele, Chuyen van Pham   +3 more
wiley   +1 more source

Headspace evaluation report

, 2009
  headspace, the National Youth Mental Health Foundation, was launched in 2006 as part of the Australian Government’s commitment to the Youth Mental Health Initiative (YMHI).
Kristy Muir
core  

Application of headspace solid phase microextraction to qualitative and quantitative analysis of tobacco additives in cigarettes

, 2006
Cigarettes may contain up to 10% by weight additives which are intended to make them more attractive. A fast and rugged method for a cigarette-screening for additives with medium volatility was developed using automatic headspace solid phase ...
Pragst, F., Merckel, Careen, Bernhard, Werner, Pragst, Fritz, Merckel, C., Aebi, B., Sporkert, F., Sporkert, Frank, Ratzinger, A., Aebi, Beat, Bernhard, W., Ratzinger, Astrid   +11 more
core   +1 more source

Enhanced Urea Oxidation Reaction by Mn‐Doped Nickel Hydroxide From Wastewater

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Mn incorporation modifies the hydroxide structure and modulates the electronic properties of the Ni centers, promoting the formation of catalytically active NiOOH species. Mn dopants induce a favorable electronic effect but do not directly participate in the UOR mechanism, enhancing the overall urea oxidation rate and resulting in increased hydrogen ...
Filippo Bano, Da Chen, Daniele Perilli, Samuele Zambonin, Dario Mosconi, Marco Roverso, Veronica Celorrio, Cristiana Di Valentin, Laura Calvillo   +8 more
wiley   +1 more source

Environmental influences on grape aroma potential [PDF]

, 2011
Understanding the source of wine volatile compounds and the mechanisms that influence their formation through grape growing, winemaking and storage is essential for wine businesses when developing strategies to produce wines with specific sensory ...
Robinson, Anthony
core