翻訳と辞書 Words near each other ・ Isotopic labeling ・ Isotopic ratio outlier analysis ・ Isotopic shift ・ Isotopic signature ・ Isotopically pure diamond ・ Isotopologue ・ Isotopomers ・ Isotopy ・ Isotopy (semiotics) ・ Isotope 217 ・ Isotope 244 ・ Isotope analysis ・ Isotope dilution ・ Isotope effect ・ Isotope electrochemistry ・ Isotope fractionation ・ Isotope geochemistry ・ Isotope hydrology ・ Isotope lists ・ Isotope lists, 0-24 ・ Isotope lists, 25-48 ・ Isotope lists, 49-72 ・ Isotope lists, 73-96 ・ Isotope lists, 97+ ・ Isotope separation ・ Isotope-coded affinity tag ・ Isotope-ratio mass spectrometry ・ Isotopes of actinium ・ Isotopes of aluminium ・ Isotopes of americium 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 Isotope fractionation ： ウィキペディア英語版 Isotope fractionation Isotope fractionation describes processes that affect the relative abundance of isotopes, often used in isotope geochemistry. Normally, the focus is on stable isotopes of the same element. Isotopic fractionation in the natural environment can be measured by isotope analysis, using isotope-ratio mass spectrometry, to separate different element isotopes on the basis of their mass-to-charge ratio, an important tool to understand natural systems. For example, in biochemistry processes cause a fluctuation in the amount of carbon isotope ratios incorporated into a biological being. The difference between the true amount of carbon and the amount in the plant is known as isotope fractionation. == Definition== Stable isotopes partitioning between two substances ''A'' and ''B'' can be expressed by the use of the isotopic fractionation factor (alpha): where ''R'' is the ratio of the heavy to light isotope (e.g., 2H/1H or 18O/16O. Values for alpha tend to be very close to 1. 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「Isotope fractionation」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.