定量分析

The red blood cells were obtained by centrifugation of the DN plasma samples at 3000 r/min for 5 min and deproteinized with trichloroacetic acid.

和20 mmol/L pH 6.86的磷酸缓冲液，在25 kV，30 ℃和200 nm条件下，可在3 min内同时对血红细胞中GSSG和GSH定量分析。

As to the high polarity, high boiling point resultant—trimesic acid, the analysis methods of infrared spetrum, gas chromatography-mass spectroscopy, vapour-phase chromatography, acid number titration and so on are seperately used to characterize its property. Infrared spetrum and gas chromatography-mass spectroscopy are used to have a qualitative analysis on the resultant and are compared with the stand diagram. Sulfuric acid-methanol esterification and rapid esterification are used to prepare the trimesic acid trimethyl-ester and have a FID quantitative analysis. So that we make sure the purity of trimesic acid in the resultant and also we have an acid alkali titration on the resultant to get its acid number, in order to verify the purity of trimesic acid in the resultant.

对于高极性、高沸点的固体产物均苯三甲酸，分别采用红外光谱、气质联用、气相色谱、酸值滴定等分析手段进行了表征：利用红外光谱、气质联用的方法进行产物的定性分析，并与在同一仪器、同一条件下做出的标准谱图进行比对；采用硫酸-甲醇酯化法和快速酯化法制备出均苯三甲酸三甲酯，对其进行气相色谱FID定量分析，进而确定固体产物中均苯三甲酸的纯度；用酸碱滴定法确定固体产物的酸值，以对固体产物中均苯三甲酸的纯度进行验证。

Methods: TLC gastrodin on preparation, and Liuzhou, Uncaria qualitative identification; of Group Fangzhong Paeoniflorin active ingredients used RP-HPLC method for quantitative analysis.

采用薄层色谱法对制剂中天麻、地龙、钩藤进行定性鉴别；对组方中有效成分芍药苷用RP－HPLC法进行定量分析。

And by use of cluster and discriminant analyses, a quantitative mode of flow unit definition in uncored wells has been developed, and also, three types of flow units have been recognized.

根据流动单元的定义及其地质意义，在取心井定性和定量分析的基础上，确定了孔隙度、渗透率、流动层指数和Winland r35 四个参数作为流动单元划分的指标。

The marginal sharpness, slab artifact and beam hardening artifact were graded 1 to 5 semi-quantitatively for comparison. Grades 1 and 2 were considered uninterpretable.

影像边缘锐利度、层状假影、射束硬化假影以grade 1到grade 5作半定量分析，其中grade 1和grade 2定义为无法判读。

Through deeply analysis, we find the main management issue in FT is mostly caused by unsmooth business process.

为此本文在确定 FT 公司的核心流程和二级流程的基础上，通过定性和定量分析相结合的方法确定了需要改进的主要流程。

Methods One hundred patients (80 males and 20 females, aged from 11 to 75 years) who suffered from cerebrovascular disease received routine cerebral CT examination in resting state firstly. After breathing in the xenon-oxygen mixed gase in proportion, they once more received the cerebral CT examination. Nine of them were injected vasodilating agent, then received the enhanced CT examination again. Finally, these results were transferred to the Xe-CT CBF analysis system to analyze the CBF quantitatively.

选择100例脑血管病患者（男80例，女20例，年龄11～75岁）在安静状态下进行CT头颅常规扫描然后吸入氙气与氧气按一定的比例形成的混合气体后再次进行扫描，其中9例注入血管扩张药后进而行增强扫描，最后将扫描结果上传Xe-CT CBF分析系统，进行CBF的定量分析。

Though the analysis of quality, we conclude that the grade of our processing trade's participation into international intra-product specialization has been increasing since 1983, complied with the trend of world intra-product specialization development, and the situation has been comparatively steady since Deng Xiaoping's south visitatorial talking.

通过对我国加工贸易参与国际产品内分工的定量分析，得出：1983年代以来中国参与产品内分工的程度处于上升趋势，与世界产品内分工的发展趋势一致，同时，自1992年邓小平同志南巡讲话后我国在参与国际产品内分工中已基本处于比较稳定的状态；通过对我国加工贸易参与国际产品内分工的结构分析得出中国参与国际分工的重要方式是：大量进口中间投入品并加工装配成最终产品，然后出口最终产品，而且这一分工方式具有进一步加强的趋势。

Objective:To discuss the method and value of volumetric measurement of adult brain using MRI.

目的 ：讨论磁共振成像对成人脑体积定量分析的方法及其价值。

In addition, a quantitative analysis of factors influencing the cavern imaging accuracy in the traditional and new methods provides a theoretical guide to improve the exploration accuracy of vuggy carbonate reservoirs.

同时，对常规偏移成像方法和逆散射成像方法影响溶洞成像精度的主要因素进行了定量分析，为提高溶洞型碳酸盐岩油气藏勘探精度提供了理论指导。图11参23

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。