In general, two dimensional dynamic NMR spectrum can be obtained by means of three-pulses experiment.
二维动态nmr谱通常可由三脉冲实验得到。
Progress in solid-state NMR spectrum study of positive electrode materials for lithium ion batteries;
正极材料的研究是锂离子二次电池的核心技术之一。
The result of experiment makes clear: in the mixed system the each component height of integral in the NMR spectrum has additivity.
实验结果表明,混合体系中各组分在核磁共振图谱中的积分曲线高度也具有加和性。
RESULTS the optical rotations and 1h NMR spectrum of the products were in agreement with the chemical structures of the corresponding diols.
结果产物的比旋光度和1H核磁共振光谱(1 H NMR)与相应二醇的化学结构相符。
In many cases, in teaching, for example, what is required is this kind of NMR spectrum which is simply structured, small-sized, cheap and highly integrated.
而在许多应用场合,比如教学中,往往需要一种结构简单,体积小巧,价格便宜,集成度高的一体化核磁共振谱仪。
The paper mainly discussed the applied effects of high resolution inversion of relaxation spectrum in nuclear magnetic resonance (NMR) logging data.
本文对核磁共振测井数据的高分辨率弛豫谱反演技术及实际应用效果进行了讨论。
The structure of objective product was confirmed by characterization with Fourier transform infrared spectrum (FTIR), nuclear magnetic resonance (1H NMR) and mass spectrometer (MS).
并通过傅里叶变换红外光谱(FTIR)、核磁共振谱图(1HNMR)以及质谱(MS)对产物进行了表征,确定了目标产物的结构。
The compound structure is verified by melting point, IR, NMR, element analysis, mass spectrum and optical rotation.
所得最终产品经熔点、核磁、红外、元素分析、质谱和旋光度分析,证明与预期结构相符。
The structure and composition of the copolymer were identified and examined by infrared spectrogram and NMR-H spectrum.
通过红外光谱、核磁共振氢谱明确了聚合物的组成和结构。
Method: to make use of the methods of HPLC and NMR, and to establish the characteristic absorption spectrum.
方法:采用光谱学及色谱学方法,确定醇提取活性成分的HPLC和NMR的特征吸收图谱。
Z echo NMR pulse sequence is proposed for using in measurement of pure dipole or quadrupole spectrum.
本文提出一个Z回波核磁共振(nmr)脉冲序列,可以获得三能级体系的纯偶极或纯四极谱。
Igneous rock with strong magnetic susceptibility, leading to strong internal magnetic field gradient, and to T2 spectrum forward and NMR porosity decrease.
火成岩具有强磁化率,导致火成岩孔隙内部产生强磁场梯度,使火成岩的核磁测井T2谱发生前移、核磁孔隙度减小;
The molecular structure of optimum products is characterized by using infrared spectrum, NMR and ultimate analysis.
利用红外光谱、元素分析及核磁共振等手段对优化条件下的产物进行了分子结构表征。
In this paper, we summarize the application of NMR at high molecular materials in recent years, from liquid NMR-solid NMR two dimension NMR correlation spectrum.
综述了近年来核磁共振波谱技术在高分子材料方面的应用,主要从液体核磁共振—固体核磁共振—核磁共振二维谱等技术方面进行了论述。
IR spectra, mass spectrum and 1H NMR characterize it. Its surface tension, cmc, emulsification, moistening property, froth property and complex property are tested.
采用红外、质谱、核磁氢谱对正辛基聚葡萄糖苷进行了表征,并对其表面张力、临界胶束浓度、乳化性能、润湿性能、泡沫性能和复配性能进行了测试。
The extraction was analyzed by HPLC, and was separated by column chromatography ulteriorly. The crystal was identified by IR spectrum, UV spectrum, NMR, et al.
将萃取所得产物用硅胶柱色谱进一步分离,用红外光谱,紫外光谱和核磁共振光谱等手段鉴定所得结晶。
By using DSC, IR spectrum, NMR, microcolumn analysis and other methods, the structure of the product is characterized and its properties such as viscosity and saponification degree are determined.
用dsc、红外、核磁共振、微库仑分析法等测试手段对产品的结构进行了表征;还用粘度、醇解度等常规分析方法测定了产品的性能。
The energy spectrum technology was used to analyze the elements, then the functional groups were analyzed by FTIR and 13c NMR.
利用能谱技术分析白色颗粒的元素组成,结合傅里叶红外光谱和13c核磁共振技术分析白色颗粒中的官能基团。
But many normal analysis techniques, for examples. UV-Vis spectrum, NMR and EPR cannot be used to detect the special metal ions in living things.
但普通的分析方法,如紫外-可见光谱、核磁共振光谱、电子顺磁共振光谱等都不能用于检测这种生物体系中特殊的会属离子。
But many normal analysis techniques, for examples. UV-Vis spectrum, NMR and EPR cannot be used to detect the special metal ions in living things.
但普通的分析方法,如紫外-可见光谱、核磁共振光谱、电子顺磁共振光谱等都不能用于检测这种生物体系中特殊的会属离子。
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