NMR的例句大全

Its stucture was investigated through IR, 1 H NMR and mass spectrum.

用红外光谱 、 核磁共振氢谱和质谱推测了产物的结构.

NMR and IR studies on the characterization of cordycepin and 2 ′-deoxyadenosine

虫草素及2′－脱氧腺苷的超导核磁共振与红外光谱鉴别

Three noncyclic acetal-linked cleavable surfactants were prepared based on the optimum condition by condensation of para formaldehyde with polyethers O-9, O-15, O-20. The yield was 88.6%, 81%, 75%, respectively and the structure was determined by NMR.

采用最佳工艺条件合成了O-9、O-15、O-20缩甲醛三种分子量较大的缩醛型聚醚，产率分别为88.6%、81.9%、75%。

The calculation of double bond~ ( 13) C NMR chemical shift in bicyclic and polycyclic compounds

双环和多环化合物中双键~（13）c NMR化学位移计算

An automatic tracking loop, an important part of the circuits in automatic searching NMR gaussmeter, is presented in this paper.

本文所述的自动跟踪环路是自动跟踪核磁共振（NMR）磁强计电路的重要部分。

13C-NMR results showed that WSOC were mainly composed of carbohydrates carbon, carboxyl carbon and long-chain aliphatic carbon.

13C核磁共振（13c NMR）的研究结果表明，WSOC都主要是由碳水化合物C、羧基C和长链脂肪C组成。

A novel and simple 1H-NMR method for determination of enantiomeric purity, BETR, is studied.

BETR法是通过CPMG脉冲系列消除手性位移试剂的宽峰，用~1H-NMR测定对映体含量的一个新而简单的方法。

Furthermore, we also found the presence of a variety conformers in solution of capecitabine and trandolapril, and then elucidated its stereostructure by NMR spectroscopy and quantum chemistry calculation for the first time.

同时，本研究首次发现群多普利和卡培他滨在溶液中存在多种构象异构体，并通过NMR实验和量子化学计算阐明了其立体结构。

~ 1h-nmr relaxation and state evolvement of evaporable water in cement pastes

水泥浆体中可蒸发水的~1H核磁共振弛豫特征及状态演变

The products of the catalytic reduction ethyne by nitrogenase in D2O were studied by 1H NMR.

用~1H NMR研究了固氮酶在重水中催化还原乙炔的反应产物氘代乙烯。

1H NMR Study on the Products of the Catalytic Reduction of Ethyne by Nitrogenase in D_2O

重水中固氮酶催化还原乙炔产物的~1H NMR研究

The structure change of medium coal tar pitch ( MCTP ) during co-carbonization was investigated by using NMR.

使用一种工业重质油和中温煤焦油沥青进行共 炭化 反应,改善了煤沥青的炭化性质.

The magnet which is used in subminiature NMR Analysis Instrument is successfully finished.

利用本文设计的磁体,我们成功的研制了微型核磁共振分析仪.

The structures of the prod-ucts were confirmed by 1 H NMR , MS, NOE, HMBC and HMQC spectra.

化合物的结构经1HNMR, MS, NOE差谱, HMBC,HMQC确定.

The melamine-modified urea-formaldehyde resin ( MUF ) for E 1 type MDF was quantitatively examined using the 13 C-NMR spectroscopy.

采用13C-核磁共振定量分析了由选定碱-酸-碱工艺所合成的E1级MDF用三聚氰胺改性脲醛树脂.

This paper analyzes the glyceryl polyether by nuclear magnetic resonance ( NMR ) spectroscopy .

用 核磁共振 分析了甘油聚醚.

Its structure was confirmed by elemental analysis ( EA ) , nuclear magnet resonance ( NMR ) and photoluminescence ( PL ) .

首先通过元素分析和 核磁共振 及 发射光谱 证明了它的结构.

The structures of the isolated compounds were identified by EI-MS , LC-ESI-MS and 1 H NMR.

其结构通过EI -MS, LC—ESI -MS和1HNMR鉴定.

Al MAS NMR can characterize and determinate aluminum in the solid samples.

应用27AlMASNMR可直接对固态样品中铝的存在状态和含量进行表征和测量.

Among these are the introduction of FT Raman, IR dichroism, IR microscopy, and NMR imaging spectrometers.

其中包括傅立叶变换拉曼色谱仪, 红外二色仪, 红外显微镜和核磁共振成象光谱仪.