
[物] 電子順磁共振
Using PBN as spin trap matter, we stu***d the feasibility of detect organic peroxides by spin trapping and electron paramagnetic resonance technique.
以PBN為捕獲劑,采用自旋捕獲與電子順磁共振技術研究測定有機*********物的可行性。
The basic principle, research object, method and applications of electron paramagnetic resonance in mensuration and analysis of antioxidation activity of plant were introduced in the paper.
該文簡單介紹電子順磁共振波譜法的基本原理、研究對象、方法及其在植物抗氧化活性檢測分析中應用。
The decomposition mechanism of the potassium persulphate is deduced with these and electron paramagnetic resonance spectrum (EPR). Its action mechanism with size and fiber is also done respectively.
結合電子順磁共振波譜(EPR)測定結果,推定出了************的分解反應機理以及分解産物與漿料及纖維作用的機理。
The results of electron paramagnetic resonance and selected dissolving experiments onsubmicro-gold in pyrite and arsenopyrite have been re-evaluated.
重新認以了含金黃鐵礦、含金毒砂中次顯微金的電子順磁共振實驗和溶解實驗的結果。
The spectrum characteristics of quartz in some gold deposits in Middle Jiangxi province is stu***d by use of the electron paramagnetic resonance (EPR) and infrared spectrum .
本文借助電子順磁共振、紅外光譜等現代測試手段,對贛東地區若幹金礦床(點)石英譜學特征進行了研究。
The structures of the samples were analyzed by X-ray diffraction, and the impedance spectra and electron paramagnetic resonance spectra were measured.
用X射線衍射儀檢測了樣品的結構,測量了樣品的阻抗譜和電子順磁共振譜。
Site-directed spin labeling(SDSL) combined with electron paramagnetic resonance(EPR) spectroscopy is a powerful tool for detecting structure of proteins.
位置定向的自旋标記(SDSL)技術結合電子順磁共振(EPR)波譜技術成為檢測蛋白質結構的有力工具。
The quartz is stu***d using an electron paramagnetic resonance (EPR), infrared spectrum (IR) and the electrical conductible degree of ore-bearing fluids.
借助于電子順磁共振、成礦溶液電導度和紅外光譜方法對刺猬溝金礦區石英進行了分析。
Their technique measures the warping of tooth enamel inflicted by radiation, detected in electron paramagnetic resonance.
他們使用電子順磁共振測定了輻射對牙釉質的影響。
Longer distance constraints are determined by site-directed spin labelling electron paramagnetic resonance, but current labelling strategies still constitute some limitation.
直接位點标記的旋轉電子順磁共振可以得到更長的距離約束數據,但是目前的标記策略仍然具有局限性。
The defect properties in chemical vapor deposition diamond films doped by sulfur and boron were investigated by the Doppler broadening measurements and electron paramagnetic resonance (EPR).
利用多普勒增寬譜和電子順磁共振研究了摻硼和摻硫金剛石薄膜的缺陷狀态。
Recent research interests include application of electron paramagnetic resonance (EPR) sensor and oxygen sensing (oximetry) in vivo.
主要研究方向:電子順磁共振傳感器應用和生物活體線上測氧技術。
Methods Oxygen free radicals were measured directly in different stages of myocardial ischemia and reperfusion by electron paramagnetic resonance spectroscopy (ESR).
方法利用順磁共振波譜儀直接測定心肌缺血再灌注的不同階段氧自由基的産生。
The free radicals in kerogen of sedimentary organic matter can be easily determined by using the electron paramagnetic resonance(EPR) technique.
利用電子順磁共振(EPR)技術可以簡便地測定沉積有機質中幹酪根的自由基。
Study of the optical spectra and the electron paramagnetic resonance(EPR) spectrum is an important method to study substance property.
光譜和電子順磁共振譜的研究是研究物質性質的重要方法。
In this study, cryogenic electron paramagnetic resonance (EPR) and spin trapping techniques were used to detect the generation of reactive oxygen species (ROS) in stroke rat brain.
并首次直接測定了補陽還五湯對中風大鼠皮層及小腦的活性氧物質(ROS),包括************生成的影響。
The structures of the three compounds were characterized with X-ray diffraction, UV-vis spectroscopy, element analysis, and electron paramagnetic resonance spectroscopy.
應用X-射線單晶衍射、紫外光譜、元素分析和順磁共振波譜等手段對化合物進行了表征。
電子順磁共振(Electron Paramagnetic Resonance,簡稱EPR),也稱為電子自旋共振(Electron Spin Resonance,ESR),是一種用于研究含有未成對電子物質的波譜技術。其核心原理基于順磁性物質在磁場中吸收特定頻率電磁波的現象,通過分析共振信號可獲取物質結構、動力學及化學環境等信息。
共振條件滿足公式:
$$
h u = gmu_B B
$$
其中,( h )為普朗克常數,( u )為電磁波頻率,( g )為朗德因子,( mu_B )為玻爾磁子,( B )為外加磁場強度。
EPR技術廣泛應用于:
電子順磁共振(Electron Paramagnetic Resonance, EPR)是一種用于檢測物質中未成對電子及其周圍環境特性的磁共振技術,以下為詳細解釋:
EPR的全稱是電子順磁共振,也被稱為電子自旋共振(ESR)。兩者本質相同,均描述未成對電子在外磁場中的自旋能級躍遷現象。名稱差異源于不同學科或地區的習慣(如物理學常用EPR,化學領域多用ESR)。
EPR譜儀主要包括輻射源、諧振腔、樣品座、信號接收與記錄系統等,通過分析吸收譜線的形狀、強度及分裂模式獲取樣品信息。
EPR與ESR可互換使用,但需注意部分文獻可能根據學科偏好選擇其一。例如,蘇聯學者葉夫根尼·紮沃伊斯基在1944年發現該現象時稱其為ESR。
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