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- chemical shift reagent 化学位移试剂
- The chemical shift of hydrogen atom in host and guest molecules were also investigated with 1HNMR. 1HNMR探讨包合物形成时主客分子之间化学位移的相互作用。
- But 8-hydroxy quinine and m-nitrophenol made chemical shift of the above hydrogen slightly increase. 而8-羟基喹啉和间硝基苯酚导致上述氢的化学位移稍升高。
- Auger chemical shift (ACS) of several compounds of silicide and metal oxide was studied using scanning Auger microprobe in this paper. 对几种硅化物及金属氧化物的俄歇化学位移作了实验研究。
- Atomic electro negativity distance vector applied to quantitative structure-spectrum relationship study on 13C NMR chemical shift of terpenoid[J]. 引用该论文 仝建波;曾晖;张生万;彭传友;乔华;张巧霞;李志良.
- Adrenal masses: is there linear correlation between unenhanced CT attenuation value and signal intensity loss on opposed-phase chemical shift MR imaging? 肾上腺肿瘤的平扫CT值与磁共振化学位移成像反相位信号丢失程度相关性的研究?
- Using Biacore and NMR chemical shift perturbation experiments, we studied the binding characteristics of CMS_SH3_B to the C-terminal peptides (Cbl-p) of c-Cbl. 同时通过Biacore和NMR化学干扰实验研究CMS_SH3_B与来自c-Cb1 C-末端多肽(Cb1-p)的结合作用。
- Magnetic resonance spectroscopy is a method analyzing specifically atomic nucleus and their compound, which utilizes the magnetic resonance phenomena and chemical shift. 磁共振波谱成像是利用核磁共振现象和化学位移作用,进行特定原子核及其化合物定量分析的方法。
- Based on characterizations of the chemical shift and quadrupoleinteraction the various aluminum species presented in zeolites can be identified or classi-fied. 基于化学位移或核电四极作用的表征，可识别、分辨铝在沸石中不同结构状态或配位状态；
- A novel associated model based on statistic associating fluid theory (SAFT), which has less parameters, is proposed for correlating NMR chemical shift data for mixtures. 作者从统计缔合流体理论(SAFT)出发，提出了一个能关联混合物核磁共振化学位移，但又不需要假设缔合平衡常数的模型。
- As far as I remember, Gaussian will give the chemical shift of every atom. Therefore with a parallel calculation of a standard molecule, such as TMS, ...... 发表于2007-6-1601:22|只看该作者看帖回帖是一种美德;您的回帖是对楼主最大的支持.
- A Facite Route for Synthesis of Chiral Shift Reagent Eu(dcm)_3 手性位移试剂Eu(dcm)_3的一个改进合成方法
- CHEMICAL EQUILIBRIUM AND STRUCTURE OF COMPLEXES OF 18-CROWN-6 WITH SHIFT REAGENT Eu(FOD)_3 IN CCl_4 18-冠-6与Eu(fod)_3~+在CCl_4中的化学平衡及其配合物的结构
- Objective To investigate the value of different proton MR spectroscopy techniques including single-voxel spectroscopy (SVS) and chemical shift imaging (CSI) in diagnosing patients with temporal lobe epilepsy. 目的 应用MR氢质子波谱 (1HMRS)不同成像方法 ,包括单体素波谱 (SVS)、化学位移成像 (CSI) ,探讨1HMRS对颞叶癫痫 (TLE)的诊断价值。
- Hounsfield units (H), signal intensity index (SII), adrenal-to-spleen chemical shift ratio (ASR), adrenal-to-liver chemical shift ratio (ALR) and adrenal-to-muscle chemical shift ratio (AMR) were obtained for each adrenal mass. 测量H(平扫CT值)及SII(信号强度指数)、ASR(肾上腺-脾脏化学位移比率)、ALR(肾上腺-肝脏化学位移比率)、AMR(肾上腺-肌肉化学位移比率)。
- The structure of polyunsaturated fatty acid ethyl ester in fish oils were characterized by 1 H and 13C NMR, and assignment of peaks were made by means of 1H - 1H homo-nuclear shift correlation( COSY) and 1H - 13C chemical shift correlation ( HETCOR). 利用~1H、~(13)C核磁共振波谱,对鱼油多烯脂肪酸乙酯的结构进行了表征,并通过二维H-~1H相关谱(COSY)和~1H-~(13)C化学位移相关谱(HETCOR)对各共振峰进行了指认。
- In the second part, we first introduce the basic theory of NMR chemical shift and the problem appeared in the calculation on the I3C NMR chemical shift tensors of the carboxyl carbon in crystal amino acids. 第二部分则首先介绍了基本的化学位移理论以及理论上计算晶态氨基酸分子羰基碳原子~(13)C NMR化学位移张量所出现的问题。
- An inexpensive popular model of nuclear magnetic resonance (NME) spectrometer(with multi-functions of observing NMR signal by larger amplitude of modulated fieldand measuring broad spectra and chemical shift of NMR) has been designed and man-ufactured. 设计并研制了一台普及型核磁共振波谱仪,谱仪具有观察大调制信号,检测宽线谱和显示化学位移等多种功能。
- Since fulvenes show no evidence of ring currents, the chemical shifts of the protons will be found in the normal definite region. 既然富烯不显示环电流存在的迹象，所以质子的化学位移仍然发生在正常的链烯区。
- Keywords determination of enantiomer excess;binaphthol derivative;chiral shift reagent;asymmetric synthesis; 对映体含量测定;联萘酚衍生物;手性诱导试剂;不对称合成;
