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.

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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

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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%。

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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

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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。

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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。

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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。

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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。

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~ 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

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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。

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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

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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.

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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.

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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.

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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.

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

用 核磁共振 分析了甘油聚醚.

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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.

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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.

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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.

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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.

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