翻訳と辞書 Words near each other ・ Sternum ・ Sternum (arthropod anatomy) ・ Sternwalk ・ Sternwarte Bülach ・ Sternwarte Hubelmatt ・ Sternwarte Mirasteilas ・ Sternwarte Peterberg ・ Sternwarte Sirius ・ Sternwarte Uecht ・ Sternwheeler Columbian disaster ・ Sternwheeler Jean ・ Sternycha ・ Stern–Brocot tree ・ Stern–Gerlach experiment ・ Stern–Gerlach Medal ・ Stern–Volmer relationship ・ Steroh ・ Steroid ・ Steroid 11-beta-hydroxylase ・ Steroid 11beta-monooxygenase ・ Steroid 15beta-monooxygenase ・ Steroid 17a-monooxygenase ・ Steroid 17alpha-monooxygenase ・ Steroid 9alpha-monooxygenase ・ Steroid acne ・ Steroid atrophy ・ Steroid Delta-isomerase ・ Steroid dementia syndrome ・ Steroid diabetes ・ Steroid folliculitis 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 Stern–Volmer relationship ： ウィキペディア英語版 Stern–Volmer relationship The Stern–Volmer relationship, named after Otto Stern and Max Volmer,〔Mehra and Rechenberg, Volume 1, Part 2, 2001, 849.〕 allows us to explore the kinetics of a photophysical ''intermolecular'' deactivation process. Processes such as fluorescence and phosphorescence are examples of ''intramolecular'' deactivation (quenching) processes. An ''intermolecular'' deactivation is where the presence of another chemical species can accelerate the decay rate of a chemical in its excited state. In general, this process can be represented by a simple equation: :$$ \mathrm^ * + \mathrm \rightarrow \mathrm + \mathrm or :$$ \mathrm^ * + \mathrm \rightarrow \mathrm + \mathrm^ * where A is one chemical species, Q is another (known as a quencher) and * designates an excited state. The kinetics of this process follows the Stern–Volmer relationship: :$$ \frac = 1+k_q\tau_0\cdot() Where $I\_f^0$ is the intensity, or rate of fluorescence, without a quencher, $I\_f$ is the intensity, or rate of fluorescence, with a quencher, $k\_q$ is the quencher rate coefficient, $\backslash tau\_0$ is the lifetime of the emissive excited state of A, without a quencher present and $()$ is the concentration of the quencher.〔Permyakov, Eugene A.. (Spectroscopy of Proteins ), CRC Press, 1993.〕 For ''diffusion-limited'' quenching (''i.e.'', quenching in which the time for quencher particles to diffuse toward and collide with excited particles is the limiting factor, and almost all such collisions are effective), the quenching rate coefficient is given by $k\_q\; =\; /$, where $R$ is the ideal gas constant, $T$ is temperature in kelvin and $\backslash eta$ is the viscosity of the solution. This formula is derived from the Stokes–Einstein relation. In reality, only a fraction of the collisions with the quencher are effective at quenching, so the true quenching rate coefficient must be determined experimentally.〔(Fluorescence lifetimes and dynamic quenching )〕 == See also == Optode, a chemical sensor that makes use of this relationship 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「Stern–Volmer relationship」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.