之后采用Noesygppr1D脉冲序列获得1H-NMR图谱,具体采集参数如下:温度为298 K,数据点32 K,脉冲宽度(SW)7 211.54 Hz,采集时间(AQ)2.980 s,90°脉冲宽度14.75 μs,混合时间0.05 s,为了使成分和内标的信号峰均弛豫完全,分析亲水性成分和疏水性成分的...
1H MAS NMR1H NOESY NMR1H–13C cross‐relaxationzeolitesadsorbed moleculesHigh-resolution 1H magic angle spinning (MAS) NMR investigations of 1-butene and 1-pentene molecules sorbed in zeolite NaX are presented in which a considerable decrease in the linewidths compared with common experiments is ...
之后采用Noesygppr1D脉冲序列获得1H-NMR图谱,具体采集参数如下:温度为298 K,数据点32 K,脉冲宽度(SW)7 211.54 Hz,采集时间(AQ)2.980 s,90°脉冲宽度14.75 μs,混合时间0.05 s,为了使成分和内标的信号峰均弛豫完全,分析亲水性成分和疏水性成分的弛豫延迟时间(D1)分别为15.0 s和20.0 s;接收器增益(RG)为57,...
The 1H NMR spectra were acquired using NOESY pre-saturation pulse sequence (Bruker 1D noesygppr1d pulse sequence), 64 K data points, spectral width of 20 ppm, acquisition time of 2.75 s, a recycle delay of 4 s, a relaxation delay of 5*T1 (19 s for blood, 26 s for liver), and ...
之后采用Noesygppr1D脉冲序列获得1H-NMR图谱,具体采集参数如下:温度为298 K,数据点32 K,脉冲宽度(SW)7 211.54 Hz,采集时间(AQ)2.980 s,90°脉冲宽度14.75 μs,混合时间0.05 s,为了使成分和内标的信号峰均弛豫完全,分析亲水性成分和疏水性成分的弛豫延迟时间(D1)分别为15.0 s和20.0 s;接收器增益(RG)为57,...
Bruker 600 MHz AVANCEIII NMR谱仪(配有Broker 5 mm BBO探头,质子频率600.13 MHz,采集温度300.3 K)采集数据,肺脏样品采用Nuclear Overhauser Effect Spectroscopy(noesygppr1d)脉冲序列压制水峰,扫描次数(Number of scans)64,谱宽(Spectral...
1H-NMR spectroscopy, Nuclear Overhauser Spectroscopy (NOESY) as well as Paramagnetic Relaxation Enhancements (PRE) experiments have been carried out to quantitatively investigate the incorporation of resveratrol, at both the liposome preparation stage and by preformed liposomes, also with the aim to ...
摘要 应用1H NMR,13C NMR,DEPT135,1H-13C HMBC,1H-13C HSQC,1H-1H COSY和1H-1H NOESY等多种NMR技术,对文献报道的洛莫司汀(Lomustine)1H和13C NMR数据进行了修... 关键词核磁共振(NMR) / 结构归属 / 洛莫司汀 收藏 全部来源 求助全文 国家科技...
仅出现一组NMR 信号 v 化学不等价的质子在 NMR 谱中出现不同的信号组v 例1:CH3OCH3 一组NMR信号 v 例2:CH3CH2Br 二组NMR信号v 例3:(CH3)2CHCH(CH3)2 二组NMR信号v 例4:CH3CH2COOCH3 三组NMR信号化学等价质子与化学不等价质子的判断v (1) 可通过对称操作(对称面、对称轴、对称中心等)或快速机制(...
The supernatant was poured into an NMR tube, and NMR spectral data were acquired on a Bruker Avance III HD spectrometer (Bruker, Germany) with a TXI probe operating at a frequency of 600.1 MHz at 298 K. A standard one-dimensional water pre-saturation pulse sequence (NOESYPR1D) was used ...