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Title: Accurate and molecular-size-tolerant NMR quantitation of diverse components in solution.
Authors: Okamura, Hideyasu
Nishimura, Hiroshi  kyouindb  KAKEN_id
Nagata, Takashi  kyouindb  KAKEN_id  orcid (unconfirmed)
Kigawa, Takanori
Watanabe, Takashi  kyouindb  KAKEN_id
Katahira, Masato  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 岡村, 英保
木川, 隆則
渡辺, 隆司
片平, 正人
Issue Date: 17-Feb-2016
Publisher: Nature Publishing Group
Journal title: Scientific reports
Volume: 6
Thesis number: 21742
Abstract: Determining the amount of each component of interest in a mixture is a fundamental first step in characterizing the nature of the solution and to develop possible means of utilization of its components. Similarly, determining the composition of units in complex polymers, or polymer mixtures, is crucial. Although NMR is recognized as one of the most powerful methods to achieve this and is widely used in many fields, variation in the molecular sizes or the relative mobilities of components skews quantitation due to the size-dependent decay of magnetization. Here, a method to accurately determine the amount of each component by NMR was developed. This method was validated using a solution that contains biomass-related components in which the molecular sizes greatly differ. The method is also tolerant of other factors that skew quantitation such as variation in the one-bond C-H coupling constant. The developed method is the first and only way to reliably overcome the skewed quantitation caused by several different factors to provide basic information on the correct amount of each component in a solution.
Description: 木質バイオマス中の各成分の物質量を正確に決定する手法の開発に成功 --木質バイオマスからの効率的なバイオエネルギー・製品原料の獲得にはずみ--. 京都大学プレスリリース. 2016-02-18.
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
DOI(Published Version): 10.1038/srep21742
PubMed ID: 26883279
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