波谱

The CIDEP spectra of the transient radicals in the photolysis of duroquinone/ethylene glycol system in acid, basic and micellar environment were measured with the homemade highly time-resolved ESR spectrometer.

用自制的高时间分辨电子自旋共振波谱仪，测量得到了酸性、碱性和胶束环境下的光解杜醌／乙二醇溶液瞬态自由基的化学诱导动态电子自旋极化谱。

In the first section ,clinical features of ALS patients were characterized as follows:(1) Thirty seven cases of definite and probable ALS patients (according to El Escorial criteria) were enrolled.

本研究旨在探讨肌萎缩侧索硬化新的诊疗手段，即质子磁共振波谱（1H-MRS）在患者的临床应用价值和ALS患者的谷氨酸测定。

In this paper, we studied the synthesis of novel imidazolones by utilizing aza-Wittig reaction. The spectral properties and biological activities of imidazolones were also researched and some of them were found to show good fungicidal activities.

本论文研究了应用氮杂Wittig反应，来合成新型咪唑啉酮类化合物，并探索了所合成化合物的波谱性质与生物活性，发现部分化合物具有良好的杀菌活性。

The NMR data of compound 6 were completely assigned by 2D-NMR techniques,including1H-1H COSY, HMQC and HMBC spectra.This was the first time to report isolation of the compound 6 from natural product.The compounds 1-5 was isolated from the genus Galium for the first time.

化合物6为首次从天然产物中得到，并运用二维核磁共振波谱技术(1H-1H COSY，HMQC和HMBC)首次对其碳谱和氢谱数据进行了全归属，化合物1～5均为首次从该属植物中得到。

Absorbance ratio derivative method was developed for the simultaneous determination of glyoxal and glyoxylic acid.

利用比值导数波谱法同时检测乙二醛和乙醛酸，为GLY催化氧化过程的实时、快速分析提供了新的手段。

The results showed that V_2O_5/C catalyst exhibited obvious activity for glyoxal oxidation and high selectivity of glyoxylic acid.

在确定了催化体系中氧化产物的基础上，建立了比值导数波谱法同时分析乙二醛和乙醛酸，该法为乙二醛催化氧化过程的实时、快速分析提供了新的手段。

Two needle-shaped crystal chemicals were identificated from a plateau plant Halenia elliptica D. Don. Some analysis methods, such as EA, MS, NMR, FTIR and UV spectrometly, as well as melting point analysis, were used for the characterization of them, results showed that they were 1,3-dihydroxy-4,5,8-trimethoxyxanthone and 1-hydroxy-2,3,4,8-tetramethoxyxanthone.

提取并鉴定高原植物椭圆叶花锚的全草中2种针状结晶化合物；采用元素分析、核磁共振波谱、质谱、红外光谱、紫外光谱、熔点测定等分析方法，对其化学结构进行表征；产物分别为1，3-二羟基－4，5，8-三甲氧基酮和1-羟基－2，3，4，8-四甲氧基酮。

The experiments in the herbicidal activity inhibiting bacteria activity and promoting animal growth activity of these novel compounds are also first studied.

分析结果显示两个反应体系中分别含有16种和17种成分。依据有关反应理论和质谱等波谱学理论，解析了33种成分的结构。

This dissertation is focused on some problems in study of ~1H-~1H homonuclear cross relaxation and chemical exchange.

本论文主要就动力学核磁共振波谱学在~1H-~1H同核交叉弛豫和化学交换研究工作中的一些问题进行了探讨。

Y. Wu et Hsuan gave twenty two compounds by the separation methods of column chromatography and preparation thin layer chromatography.

我们从紫花野芝麻的乙醇提取物中分离得到了22个化合物，运用化学和波谱学方法鉴定了其中的20个化合物的结构，这些化合物均首次从该植物中分离得到。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。