谱性

Using THz absorption spectra can distinguish different kinds of amino acids, enantiomers and racemic compounds and structure isomers.

这一研究对建立氨基酸THz谱数据库，及其在氨基酸的手性对映体、结构和成分的区别方面有很重要的理论与实践意义。

The results of on-line NIR can meet with accuratablity requirement of industrial production. NIR can obtain much repeatability and reproductivity than GC.

结果表明：在线近红外光谱法的分析结果能够完全满足生产中的精度要求，再现性和重复性优于气相色谱法的要求。

The symmetry invariant and rotation robusticity are discussed.

分析了纹理谱的对称不变性和旋转鲁棒性的特点。

The results showed that under the given experimental conditions,the surface layer with richiron and poor copper was formed in the surface worn region of the semimetallic friction material,the depth of organic ingredient pyrolysis caused by friction heat in worn surfaces was atout 0.35mm; the semimetallic friction material containing 15%-20%of Cu had better wear-resistance,and can form a even and continuous transfer film of copper; crack peeling was the importantmechanism of the counterpart.

半金属摩擦材料具有摩擦系数稳定，耐磨性好，对环境污染小和对偶件表面损伤小等优点，但其在摩擦热和界面应力等因素作用下，表层会发生弹性变形，塑性变形，元素扩散，组分转移和摩擦化学反应等现象，因此，利用扫描电子显微镜X射线能量色散谱和差热－热重分析，对铜纤维增强的半金属摩擦材料与灰铸铁滑动摩擦表面层的特性作了分析研究，考察了表面层特性对摩擦损行为的影响。

The differential expression protein with MALDITOFTOF by means of mass spectrographic was analyzed.

结果 重复性好的双向电泳图谱在CA 125阴性卵巢上皮性恶性肿瘤患者血清蛋白质表达谱发生了改变。

The development and the mechanism of stereochemical resolution of racemates, in HPLC, using a chiral stationary phase based upon immobilized enzymes ,was reviewed with 22 references.

综述了用固定化酶为高效液相色谱的固定相拆分手性物质的发展和机理，参考文献22篇。

Methods For the mild solubility of chloroform and tetrachloromethane in drinking water, chloroform and tetrachloromethane were analysed by static headspace gas chromatography with DB-5, Rtx-1 and DB-1 capillary columns and electron capture detector, external standard method was used for quantification.

利用氯仿和四氯化碳在水中的弱溶解性，采用静止顶空气相色谱法进行分析，使用DB-5、Rtx-1和DB-1毛细管柱和电子捕获监测器测定，外标法定量。

Decolorization of MB by heterogeneous Fenton reaction using titanomagnetite was studied using UV-Vis spectra, Fourier transform infrared spectroscopy, 13C nuclear magnetic resonance spectra (13C NMR), dissolved organic carbon and element C analyses.

本研究运用紫外可见光谱、傅立叶转换红外光谱和13C核磁共振谱以及水相中溶解性有机碳和固相上元素碳分析等技术对钛磁铁矿异相Fenton法脱色亚甲基蓝的过程进行了研究。

The microheterogeneity and tryptic fragments of glycoprotein recombinant human erythropoietin were analyzed by high performance capillary electrophoresis.

用高效毛细管电泳测定了重组人促红细胞生成素的微多相性、肽图，同时采用毛细管电泳质谱联用技术鉴定了部分非糖基化胰酶消解片段和O－126糖基化肽的结构。

Results:tlc characteristic of qualtative identification of this goods was apparent,with the same rf to standard samples.the content of uncaria alkaloid in rhynchophylline was 0.71% measured by ultraviolet spectrophotometry at 246.0 nm wavelength.conclusion:this method was found to be rapid,simple,economic,accurate and reproducible.

结果：本品定性鉴定薄层色谱特征明显，与标准品有相同的rf；紫外分光光度法在246.0 nm波长处测得钩藤总碱中钩藤碱的含量为0.71%。结论：此方法快速、简便、经济、准确、重现性好。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。