翻訳と辞書 Words near each other ・ Phosphorus pentasulfide ・ Phosphorus pentoxide ・ Phosphorus selenide ・ Phosphorus sesquisulfide ・ Phosphorus sulfide ・ Phosphorus tribromide ・ Phosphorus tribromide (data page) ・ Phosphorus trichloride ・ Phosphorus trichloride (data page) ・ Phosphorus trifluoride ・ Phosphorus trifluoride (data page) ・ Phosphorus triiodide ・ Phosphorus triiodide (data page) ・ Phosphorus trioxide ・ Phosphorus trisulfide ・ Phosphorus-31 nuclear magnetic resonance ・ Phosphorus-32 ・ Phosphoryl bromide ・ Phosphoryl chloride ・ Phosphoryl chloride (data page) ・ Phosphoryl fluoride ・ Phosphoryl group ・ Phosphoryl nitride ・ Phosphorylase ・ Phosphorylase kinase ・ Phosphorylase kinase, alpha 1 ・ Phosphorylation ・ Phosphorylation cascade ・ Phosphorylcholine ・ Phosphorylethanolamine Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Phosphorus-31 nuclear magnetic resonance ： ウィキペディア英語版 Phosphorus-31 nuclear magnetic resonance Phosphorus-31 NMR spectroscopy (NMR stands for nuclear magnetic resonance) is an analytical technique. Solution 31P-NMR is one of the more routine NMR techniques because 31P has an isotopic abundance of 100% and a relatively high magnetogyric ratio. The 31P nucleus also has a spin of ½, making spectra relatively easy to interpret. Phosphorus is commonly found in organic compounds and coordination complexes (as phosphines), making it useful to measure 31P NMR spectra routinely. ==Operational aspects== With a magnetogyric ratio 40.5% of that for 1H, 31P NMR signals are observed near 202 MHz on an 11.7 Tesla magnet (used for 500 MHz 1H NMR measuements). Chemical shifts are referenced to 85% phosphoric acid, which is assigned the chemical shift of 0, with positive shifts to low field/high frequency.〔 Due to the inconsistent nuclear Overhauser effect, integrations are not useful. Most often, spectra are recorded with protons decoupled. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Phosphorus-31 nuclear magnetic resonance」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.