查询词典 quantitative determination

Chinese chestnuts of Qianxi were dealed with by wet method and the determination of the content of Se in chestnuts was discussed on the influence of the proportion of nitric acid and the perchloric acid. In the system of ferricyanide potassium and hydrochloric acid, the determination conditions were optimized by standard-curve method and quantitative analysis was acquired.

采用湿法处理河北迁西板栗样品，探讨了硝酸与高氯酸的配比对板栗中硒元素含量测定的影响，在铁氰化钾－盐酸体系中，对测定条件进行了优化，采用标准曲线法定量分析。

Pararosaniline was the most accurate and sensitive method of determining SO2 residue, and it was fit for the samples of any SO2 content. Improvement pararosaniline method was only fit for the samples of high SO2 residue. Iodometry was not fit for the deep color samples and low SO2 residue samples. The fast determination method could be used the quality and semi-quantitative determination of SO2 residue in edible fungus.

副玫瑰苯胺比色法是检测SO2残留最准确、最灵敏的方法，适合于各种SO2浓度的样品；改良的副玫瑰苯胺比色法只适合于高SO2残留的样品；碘量法不适宜检测深颜色的食用菌，而且在检测低SO2残留样品时准确度不高；快速测定法可用于食用菌产品中SO2残留的定性检测和半定量分析。

This introduces several basic manipulative techniques of preparative chemistry and quantitative volumetric analysis including preparation and characterization of a derivative, recrystallization, determination of equivalent weight by using titration and determination of melting points.

这里介绍了几个基本的合成技术和定量分析法，包括衍生物的合成及其结构表徵，再结晶，用滴定法确定等当量和熔点测定。

The determination of cytokinin levels is a primary and basic approach in the cytokinin studies. The Amaranthus betacyanin bioassay was modified for the rapid and convenient determination of cytokinin activity. Meanwhile, the procedures for quantitative analyses of cytokinins by HPLC and ELISA were estabolished, and these gurantee the analyses of cytokinin levels with high precision.

在细胞分裂素的活性测定中，通过改进尾穗苋苋红素合成法建立了一种简便、准确的生物试法，同时还建立了根据物理化学和免疫学原理而测定细胞分裂素的HPLC和ELISA方法，使得细胞分裂素的定量更加准确。

The present studies developed a method of spectrophotometry for quantitative determination of the total concentration of Jasminum flavonoids. The result showed the optimal determination wavelength was 500nm.

研究确定了最佳检测波长为500nm，以芦丁为标准品，在100～800μg/mL范围内，浓度和吸光度呈良好的线性关系，回归方程为A=0.0008C+0.0248，相关系数r=0.9999，回收率在96.5％～105％之间。

Whereas analytical method and the before-mentioned numerical method have some places to improve and the determination characteristics of satellite of middle-low orbit, this paper presents a new numerical project of determination of obvious characteristics on condition that range of determination is not very long and the precision of determiantion is the meter grade, and is realized by a software.

鉴于分析法定轨和上述通常采用的数值法定轨都有各自可改进之处，本文针对一般中低轨卫星定轨的特点，在弧段不太长和定轨精度为米级的情况下，给出一种具有明显特点的数值定轨方案，且以软件具体实现了这种方案，并经受了实测资料的考验。

In the period of market economy, the enterprise wage determination changed from the plan and administration determination to the market determination, the wage gap and bonus distribution between industries and enterprises are gradually enlarged.

在转型经济时期，国家对企业内部工资分配权进行下放，企业与机关事业单位的工资增长脱钩，此阶段主要实行结构工资制，其中的基础工资部分随物价进行指数化增长。

In the ultrasonic wave butt weld flaw determination usual significance "the determination" contains two aspects the meanings : First, is the pseudo-flaw determination, Second, is determines the flaw the type, the size, the position and the distribution, namely to flaw qualitative, localization and quota.

超声波对焊接件缺陷的判定通常意义上的"判定"包含两方面的含义：一是伪缺陷的判定，二是确定缺陷的类型、大小、位置及分布，即对缺陷的定性、定位和定量。

Through the analysis of illegitimacy theory in the crime determination doctrine of civil law system, this article propose the introduction of the concept of material illegitimacy on the basis of current constitution elements of crimes in China and the active application of it in the crime determination, especially the determination of economic crimes.

本文通过分析大陆法系犯罪论中的违法性理论，认为应当在我国现有的犯罪构成理论的基础上导入实质违法性的概念，并把它积极运用到犯罪尤其是经济犯罪成立的判断中去。

Then the inauguration function is designed as five child modules: the determination of the leading vehicle, the assignment of the UIC address, the determination of node reference direction, the determination of NADI state and the integration of nodes.

其中初运行函数模块又被详细划分为五个子模块：头车辆的确定、UIC地址分配、节点参考方向确定、节点的整合、NADI状态的确定。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"