Quantitation of Total PFAS Including Trifluoroacetic Acid with …
2023年3月22日 · Fluorine nuclear magnetic resonance (19 F-NMR) spectroscopy has been shown to be a powerful tool capable of quantifying the total per- and polyfluoroalkyl …
Total and class-specific analysis of per- and polyfluoroalkyl ...
2021年11月1日 · The goal of this study is to demonstrate the unique information offered by 19 F-NMR that can complement current methods for determining total PFASs in complex …
Using 19 F NMR to Investigate Cationic Carbon Dot Association …
2023年8月25日 · 19 F NMR experiments with a 24-PFAS mixture show PEI-CDs associated with a wide range of PFAS, with a potential preference toward perfluoroalkyl sulfonates and longer …
Identifying Unknown Fluorine-Containing Compounds in …
2023年6月1日 · In this study, we measure the 19 F NMR spectrum of hundreds of fluorinated compounds and use this constructed database to determine the concentration of PFAS in an …
用氟核磁共振波谱法对包括三氟乙酸在内的总 PFAS 进行定 …
2023年3月22日 · 氟核磁共振 ( 19 F-NMR) 光谱已被证明是一种强大的工具，能够量化复杂样品中全氟烷基物质和多氟烷基物质 (PFAS) 的总量。该技术依赖于烷基链中的特征末端-CF 3位移( …
Noise-Reduced Quantitative Fluorine NMR Spectroscopy ... - PFAS …
2022年2月15日 · In the present study, we employ a F NMR technique, which is capable of detailing fluorinated compounds in a sample while providing both quantitative and structural …
(PDF) Quantitation of Total PFAS Including ... - ResearchGate
2023年3月22日 · Fluorine nuclear magnetic resonance (19F-NMR) spectroscopy has been shown to be a powerful tool capable of quantifying the total per- and polyfluoroalkyl...
Low-temperature mineralization of perfluorocarboxylic acids
2022年8月18日 · We examined a combination of solution 1 H and 19 F NMR spectroscopy and quantitative 13 C NMR spectroscopy of the precipitate isolated from the reaction and dissolved …
Dominant entropic binding of perfluoroalkyl substances …
2021年1月1日 · Fluorine nuclear magnetic resonance spectroscopy (19 F NMR) has proven to be a powerful, yet underutilized tool to study PFAS binding; chemical shifts of each fluorine group …
使用 19F NMR 研究阳离子碳点与全氟烷基物质和多氟烷基物质 (PFAS…
开发19 F NMR 方法是为了进一步了解 PEI-CD 对 PFAS 的亲和力，而无需任何复杂的样品制备。 在不同的 PEI-CD 浓度下监测 PFOA 峰强度和化学位移的变化，以建立结合曲线并确定化学 …