pfg nmr 技术简介 PFG NMR(Pulsed Field Gradient Nuclear Magnetic Resonance)是一种旨在通过引入脉冲磁场梯度来区分不同位置处的核自旋的技术。这种方法利用了不同位置处的核自旋在磁场梯度下的漂移速度不同的原理,从而实现对样品中不同位置处的核自旋进行分辨。由于磁场梯度的引入,PFG NMR 技术相较于传统的 NMR ...
脉冲梯度场核磁共振(PFG-NMR)方法是通过核自旋的自扩散行为来测定整个分子的自扩散系数,因此PFG-NMR方法不受所 … www.polymer.cn|基于 1 个网页 3. 脉冲梯度场核磁共振技术 利用脉冲梯度场核磁共振技术(PFG-NMR)研究蔗糖对面团自旋-自旋弛豫特性的影响。分子的自旋-自旋弛豫特性与分子的流动 … ...
PFGNMR Dictionary, Encyclopedia and Thesaurus - The Free Dictionary13,877,286,054visits served TheFreeDictionary Google ? Keyboard Word / Article Starts with Ends with Text EnglishEspañolDeutschFrançaisItalianoالعربية中文简体PolskiPortuguêsNederlandsNorskΕλληνικήРусс...
A monodisperse decamer bearing ten different side chains, obtained via the iterative Passerini three-component reaction and subsequent deprotection, is investigated by ~1H pulsed field gradient (PFG) NMR. Both the stimulated echo (PFG-STE) and a fast spin-echo pulse sequence (尾-PFG-SE) are ...
This chapter provides an overview of the hardware required in order to conduct PFG NMR applications. Sections include a discussion on permanent magnets and their construction, magnetic field gradients, gradient amplifiers, RF amplifiers, probes and pre-amplifiers and NMR control systems including ...
PFG-NMRself-diffusionSi/Al ratiozeoliteThe understanding of major zeolite applications is partially based on diffusion of molecules inside or outside microporous networks. However, it is still a challenge to measure such phenomena. The diffusion ordered nuclear magnetic resonance spectroscopy (DOSY) ...
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Pulsed-field gradient NMR (PFG-NMR) is widely applied to probe living tissues and biological cells structure for measuring thermodynamic binding constants, membrane permeability and rates of transmembrane exchange processes. Water movements in biological systems and food matrices are important in the engin...
必应词典为您提供pfgnmr的释义,网络释义: 核磁共振脉冲梯度场;核磁共振脉冲梯度场技术;
The DOSY Toolbox is a free programme for processing PFG NMR diffusion data (sometimes loosely referred to as DOSY data), distributed under the GNU General Public License. NMR data from three major manufacturers can be imported and all processing is done in a user-friendly graphical user interfac...