定量分析

The features of molecular structure of aromatics, resins and asphaltenes were investigated by ruthenium-ion-catalyzed oxidation, where involatile acid products were methylated with excess diazomethaneether and volatile acids were esterified with phenacyl bromide.

利用钌离子催化氧化方法对大港减压渣油芳香分、胶质和庚烷沥青质进行了选择性降解，通过GC、GC-MS等分析手段对降解反应产物中一元正构脂肪酸、α，ω-二元正构脂肪酸和苯二～六元羧酸的含量和分布分别进行了定量分析。

A quantitative analysis method is built to determine isoborneol /camphor two-component system by infra-red spectrometry.

建立了用红外光谱法定量分析异龙脑樟脑二元体系的测试方法。

However, the proportion of ingredients in premixed isocratic mobile phases can be more accurately controlled than in those delivered by most pumping systems.

泵系统在定量分析中要能够耐腐蚀性流动相物质，并在较长的时间内保持一个恒定的流速和极小的波动。

Firstly by using volume exclusion chromatography and cation exchange column,sugar molecular-weight distribution and the contents of monosaccharide, disaccharide andtrisaccharide in rice wine were determined. And then by using amino-bonding phasecolumn,the contents of three functional oligosaccharide (isomaltose, panose, isomaltotriose)in shaoxing rice wine of different years and different processes were determined andstudied.

在应用体积排阻色谱柱和钙型阳离子交换柱测定了黄酒样中糖分的分子量分布和单、双、三糖含量的基础上，利用氨基键合相柱对不同年份和不同工艺的绍兴黄酒样中异麦芽糖、潘糖、异麦芽三糖三种功能性低聚糖进行了定量分析研究。

Injury of T12 spinal cord was induced by modified Allen"s method , the rats" restitution of kinesalgia and sensation function was valued by combine behavioral score and the expression of c-fosmRNA and BDNFmRNA was observed by situ hybrization and image quantitative analysis.

采用改良的ALLEN'S撞击法致大鼠T_(12)脊髓损伤，应用CBS联合运动评分判定脊髓损伤后大鼠运动、感觉功能的恢复情况，同时应用原位杂交方法及图像定量分析法观察脊髓损伤后c-fosmRNA和BDNFmRNA的表达。

Through image digitalization and digital image frame analysis, the dynamic change of arc state and droplet motion before and after its detachment from wire tip can be quantitively described. The kinematical and kinetical parameters of droplet motion can be solved. The development of the system provides a new way for the study of metal transfer mechanisms and the interaction between droplet transfer and weld pool.

该系统通过对高速摄影图象的数字化处理及时间图象序列分析，可以对熔滴过渡过程中电弧变化的动态过程及熔滴脱落前后的运动过程进行定量分析，并可提取出熔滴运动的各种运动学和动力学参数，为进一步的熔滴过渡机理及熔滴与熔池相互作用的研究提供了新的研究手段。

Study on synthesis and thermo-stability of ladderlike polymethyl/phenylsilsesquioxane

利用气相色谱技术对氟代仲丁烷的热稳定性进行了考察，并通过对氟代仲丁烷的热消除产物的定性定量分析，讨论了其热分解机理，以四圆环状过渡态历程和碳正离子重排历程对热消除反应的产物形成进行解释。

In order to investigate the effects of water content, curing time, cement content, salt content, organic content on the strength behavior of the cemented clays, a series of physical tests and unconfined compressive tests were performed on cemented clays which composed of reconstituted Lianyungang clays or the Yancheng lagoonal soft clays mixed with powder cement or slurry cement The quantitative methods of strength prediction are proposed for assessing the unconfined compressive strength of cemented clays.

本文通过对已有国内外水泥土研究的分析，针对连云港地区高含水量、高含盐量海相软土及盐城地区高有机质含量泻湖相软土的特点，进行了大量水泥土室内试验，提出了含水量、龄期、水泥用量、含盐量和有机质含量对水泥土强度影响的定量分析公式。

METHODS Retrospective study,documented laryngoscopic images from 18 normal subjects and 27 patients diagnosed chronic laryngitis by Department of Otolaryngology-HNS of Northwestern University.

方法回顾性研究美国西北大学医学院耳鼻咽喉科硬管喉镜录像资料，用计算机图像分析软件对其进行定量分析，其中正常组18例，慢性喉炎组27例，分别选取双侧杓区、杓间区、双侧声带5个区域的图像进行分析，计算各区域黏膜的红色指数。

A method is established for determinating Clivorine in Ligularia hodgsoni .

建立了 HPLC技术测定山紫菀类药物——鹿蹄橐吾中的 Clivorine生物碱的定量分析方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。