光谱测定的

And the smooth construction of Yang Zhen in Beijing Shunyi production base, Everlast advantage of its powerful technology and research strengths laid a solid foundation for the development of the Chinese market.

一流的原料决定一流的产品质量，更决定公司的持久竞争力。在美国拥有目前世界先进的科研、检测设备：低温动力粘度测定仪、摩擦磨损试验机、边界温度测定仪、光谱分析仪、元素分析仪等检测分析设备。

To determinate the inorganic elements levels in Semen Cassiae,and to study on the pharmacologic substance basis and the influence parching processing on the content of elements of it,trace elements and heavy metals in Semen Cassiae and its preparation Cultivated in different areas were determined by atomic fluorescence spectrometry and inductive coupled plasm a atom emission spectrometry.

为测定生决明子中无机元素水平，探讨其药效物质基础及炒制对其含量的影响，采用原子荧光法和等离子发射光谱法等测定了不同产地、批次的生、炒决明子中重金属及微量元素的含量。

They were separated by using DEAE-cellulose column chromatography. Their structures were determined by IR and GC-MS. The contents of the total polysaccharide, 3,6-anhydrogalactose and sulfate were analyzed by the methods of anthranone-sulfuric acid, resorcin and BaCl2 turbidimetry.

分别用蒽酮—硫酸法、间苯二酚法、BaCl_2比浊法测定多糖样品的总糖含量、3，6-内醚半乳糖含量和总硫酸基含量；用红外光谱法确定多糖样品的特征基团；用气质联用法初步测定麒麟菜硫酸多糖的化学组成。

Four non-ionic europium complexes,〓-phen(11),〓·bipy(12),〓·dia(13) and 〓(14)(TTA=2-thenoyltrifluoroacetone, DBM=dibenzoylmethane, phen=phenanthroline, bipy=2,2'-bipyridine, dia=4,5- diazafluoren-9-one, dmbp=4,4'-dimethyl-2,2,-bipyridine), were synthesised and the triboluminescent phenomena of 12, 13 and 14 were firstly observed. Structure determinations of 11,12 and 14 were carried out. The triboluminescence maxima of 12 and 13 are similar to those of their photoluminescence. X-Ray structure analyses show that Eu atoms all exhibit eight-coordinate tetragonal antiprismatic geometries and complexes 11, 12 and 14 are all centrosymmetric.

二、合成了四个非离子型的铕的配合物：〓、〓、和〓(14)[HTTA=2-噻吩三氟甲酰丙酮，DBM=二苯甲酰基甲烷，phen=邻菲罗啉， bipy=2，2'-联吡啶，dia=4，5-二氮杂芴-9-酮，dmbp=4，4'-二甲基-2，2'-联吡啶]，首次报道了12、13及14的摩擦发光性质，测定了11、12及14的晶体结构，并系统地讨论了晶体结构和摩擦发光活性之间的关系。12及13的摩擦发光光谱的极大值均类似与其相应的光致发光光谱，表明它们有相同的激发态。

The progress in determining the minim Gallium which includes absorptiometric analysis is introduced, and various analytical approaches are discussed such as spectrophotofluorimeter, atomic absorption spectrophotometry and polarographic method etc.

介绍了近年来微量镓的分析测定方法的进展，微量镓的分析测定方法主要有光度分析法、电化学分析法和原子发射光谱法等，同时对样品的分离富集方法也进行了评述

The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.

实验部分采用以石油醚脱脂，甲醇为溶剂的回流提取法来提取植物多酚，用显色反应检识酚羟基；采用紫外分光光度法对多酚粗体物进行总多酚含量的测定；选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌，采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验，并测定其最低抑菌浓度；采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析，根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。

The two-photon absorption cross-sections of these styryl derivatives were determined by Z-scan technique, and the benzothiazolium derivatives exhibited the largest TPA cross-sections (10〓s·cm〓/photon) and the best power limiting ability at high operable incident intensity. The results show that the benzothiazolium derivatives are promising organic compounds as two-photon absorption optical limiting materials. 2. Several organic dyes active to 800nm femtosecond laser with D-π-A structure were designed and synthesized.

研究了它们的上转换荧光、上转换激射和光限幅行为，通过改变染料分子共轭体系的大小，首次实现了在576nm-635nm范围内的双光子上转换激光波长的调节，其中噻唑啉碘盐类二苯乙烯化合物的双光子上转换激射峰（576nm）是迄今在1064nm皮秒激光作用下能够得到的最短波长的激光；阴离子显著改变上转换激射效率，但对上转换荧光峰和激射峰的位置影响很小；增加溶液的浓度，上转换荧光光谱和激射光谱红移，并在一定的浓度范围内，能够有效的提高上转换激射效率；利用Z-扫描技术测定了染料分子的双光子吸收截面，发现苯并噻唑类染料分子的双光子吸收截面高达10〓s·cm〓／photon，而且在较大的入射光强范围内，这类染料分子具有较大的光限幅能力，是一类作为双光子吸收光限幅材料很有潜力的染料分子。

It, therefore, suggested that using NIRS, energy metabolic level in local working muscles and anaerobic threshold could be determined, as well as athletes aerobic capacity during submaximal exercise could be evaluated.

结果表明，采用近红外线光谱技术无损伤测定局部工作肌群的代谢水平，评定运动员在次极限运动时有氧工作能力是可行的，它为无损伤测定无氧阈提供了一种新的途径。

Through taken the measurements of pH, TOC, UV-Vis spectra and high-performance liquid chromatograph in the degrading process of solution ,it was found that the COD of dye solution increased, pH continuing declined and TOC reduced gradually. The UV-Vis spectra and high-performance shown that though dye molecules had been destroyed, Strong Chromophore Azo Double Bond of dye was certainly under attack, the big conjugated system was vandalized and dye molecules were decolorized degradation, but they were not completely changed into carbon dioxide and other inorganic matter by mineralization, it appeared accumulation of aromatic ring and double benzene nucleus, so it is thus evident that complete destruction of aromatic ring is more difficult than the double benzene.

通过测定直接大红染料脱色过程中的溶液pH、TOC、紫外可见光谱图和高效液相色谱图可知，在脱色处理时间(6h)范围内，染料溶液的COD值增大， pH值持续下降，TOC值逐渐降低，结合紫外可见光谱图和高效液相色谱图，说明染料分子虽然已经遭到破坏，染料分子内强生色基团偶氮双键确实遭到攻击，大的共轭体系被破坏，染料分子被脱色，却没有完全被彻底矿化成二氧化碳等无机物，出现了芳环和萘环结构的累积现象，可见完全破坏芳环比破坏偶氮双键发色团更困难。

One has the ability of photo-cleavage of DNA and another one as potential anti-cancer drug has the ability of oxidative cleavage of DNA. 1. As for the first system, a new ligand----Tpphz is used as the intercalator of the targeted compound. The 〓 is synthesized and characterized by elemental analysis,〓H NMR, molar conductivity, AgNO〓 titration, UV and fluorescence spectra.

核酸的光切割方面，我们选择了近年来新发现的一个配体Tpphz作为目标化合物的插入配体，合成了新颖的〓单核配合物，并通过元素分析、〓H NMR、摩尔电导测定、中心离子滴定法、紫外光谱和荧光光谱对此化合物进行了详细的表征。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。