Results 181 to 190 of about 64,070 (311)

Impact of Electron‐Withdrawing Passivating Molecules on Perovskite Solar Cells

open access: yesChemSusChem, EarlyView.
The work reviews the effect of electron‐withdrawing groups on the photoelectric performance and stability of perovskite solar cells (PSCs), mainly focusing on the mechanism by which the group improves the performance and film quality of PSCs. Interfacial instability—originating from defects, ion migration, and uncontrolled crystallization—remains a ...
Guangyue Yang   +8 more
wiley   +1 more source

Biosynthesis and Identification of Clenbuterol Metabolites in Urine and In Vitro Microsome Incubation Samples Using UHPLC‐Q‐Exactive Orbitrap Mass Spectrometry: A Comparison Between Human and Bovine Metabolism

open access: yesDrug Testing and Analysis, EarlyView.
Clenbuterol metabolism was studied in bovine and human urine using LC‐Q‐Exactive‐Orbitrap MS; eight metabolites were identified in human and bovine samples as well as a novel N‐methylated form. Four urinary metabolites specific to cattle were detected and identified.
Anuar Gómez‐Tagle   +5 more
wiley   +1 more source

Benzoic Acid in Foods

open access: yesJournal of AOAC INTERNATIONAL, 1960
openaire   +2 more sources

Prolonged Detection of GHB Intake in Urine: Are We Finally There?

open access: yesDrug Testing and Analysis, EarlyView.
In a randomised placebo‐controlled trial with 30 volunteers, urinary LC‐MS/MS analysis demonstrated that a tentative GHB‐pentose conjugate remained elevated in urine up to 72 h post‐administration. This biomarker showed clear distinction from placebo and may offer extended detection compared to GHB itself, representing a significant step forward in ...
Kathrine B. Faldborg   +4 more
wiley   +1 more source

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