BAM and NRC quantified surface amino functional groups (FGs) on 20–100 nm commercial and custom-made silica nanoparticles (SiO2 NPs), made with different sol–gel routes, amounts of surface amino FGs, and porosity in a bilateral multi-method study.
A rapid q-NMR method for determination of ursolic acid in loquat leaves.
The improved method enhances the accuracy of quantifying low-purity organic compounds by analyzing eluate components for correction factors, validated through oxytetracycline quantification, addressing qNMR challenges and ensuring purity.
A new method for rapid determination of selective androgenic receptor modulators (SARMs) andarine, cardarine, ligandrol, ostarine and S-23 in capsules by 1H- and 19F-high resolution NMR spectroscopy was described and validated.
Quantitative nuclear magnetic resonance (qNMR) spectroscopy holds strong potential for environmental microplastic analysis, contingent on addressing the challenge of quantifying aged synthetic microplastics.