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Updated: Jun 21, 2025

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow
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为什么nH- perfluoroalkanoate离子比预期的更具流动性? 识别新出现的环境污染物的影响

Karl J Jobst1, Chloe Penney1, Peter C Burgers2

  • 1Department of Chemistry, Memorial University of Newfoundland, 45 Arctic Ave., St. John's A1C 5S7, NL, Canada. kjobst@mun.ca.

Chemical communications (Cambridge, England)
|July 9, 2024
PubMed
概括

perfluoroalkyl carboxylic 酸 (PFCAs) 是一个新兴的污染物. 它们在离子移动性测试中的小尺寸是由于内部桥,帮助未来的污染物识别方法.

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相关概念视频

Other Nuclides: 31P, 19F, 15N NMR01:16

Other Nuclides: 31P, 19F, 15N NMR

Many organic, inorganic, and biological molecules contain spin-half nuclei such as nitrogen-15, fluorine-19, and phosphorus-31. As a result, NMR studies of these nuclei have found extensive applications in chemical and biological research.
While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a...
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