微量测定

A new method for the determination of vauqueline by using the flow injection chemiluminescence method is presented.

报道一种微量测定马钱子碱的新方法，该方法是基于高锰酸钾对马钱子碱的氧化作用，建立了微量马钱子碱的流动注射化学发光分析法。

All the methods used now have a common technical difficulty: The presence of large amount of uranium makes unacceptable interferences to the determination of neptunium. A separation procedure is absolutely necessary to separate neptunium from uranium completely.

国内一直没有一个比较理想的准确、灵敏的方法，解决铀产品中微量镎的测定问题，主要原因是现有的方法存在一个共同的技术难点：常量的铀对微量镎的测定干扰很大，必须要将常量铀与微量镎定量分离。

Methods: Zinc has catalysis ability in the system of oxidze xylenol orange in medium, and the discoloration extent of methyl orange has a linearity to the content of zinc. Based on this fact, a new photometric method for the determination of zinc was proposed.

在H2SO4介质中，微量锌对过氧化氢氧化二甲酚橙的反应体系具有催化作用，且二甲酚橙被氧化后的褪色程度ΔA与微量锌的含量有线性关系，据此建立了二甲酚橙褪色光度法测定微量锌的新方法。

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

Aiming at the disturbing of trace tin and trace germanium in existing simultaneous, using Artificial Neural Networks spectrometry determined simultaneously trace tin and trace germanium in extraction raffinate and stripping raffinate, tested the effect of these two metal separation and extraction.

针对微量锡与微量锗同时存在下相互干扰测定的困难进行研究，利用人工神经网络光度法比较准确的同时测定出萃余水相和反萃取水相中的微量锡与微量锗的含量，验证了两者的分离富集的效果。

Soil organic matter, total nitrogen, available nitrogen and pH are measured with high temperature potassium dichromate oxidation-capacity, semiminim karl method, alkaline hydrolysis pervasion method, and the potentionmeter method respectively.

用五点混合取样法采集广西桂林毛村岩溶区和非岩溶区典型林地、灌草丛地和耕地的0~20cm，20~40cm土壤样品，以高温外热重铬酸钾氧化－容量法测定有机质含量，半微量凯氏法测定全氮含量，碱解扩散法测定有效氮含量，电位法测定pH值。

Methods The blood samples were collected from the clinical vivax malaria patients in the center part of China, and a new established in vitro micro-test technique was used to test chloroquine sensitivity of P.vivax.

方法采用新建立的间日疟原虫药物敏感性体外微量测定技术，对中国中部间日疟流行区门诊确诊的间日疟病例进行药物敏感性测定。

Methods: The parallel plate flow-loading apparatus was used to imitate the physilogic pulsatile shear stress(19. 29 and 56.25 dynes/cm2) and the con-centrations of nitric oxide in flow were measured among test groups and different time points.

材料与方法：利用本室已建立的平行板模拟血流循环装置，在模拟生理脉动切应力(19.29.56.25dynes／cm2)分别作用于培养人脐静脉内皮细胞0，1，2，4，6，10，24 h后，用一氧化氮微量测定法测定循环液中一氧化氮的含量。

Applications of gas chromatography in the research of biodiesel processing are reviewed with 27 references,including the analysis of fatty acid methyl esters in the reaction products and final biodiesel,the determination of mono-, di-and tri- glycerides ,the contents and distribution of free fatty acids,and the determination of trace methanol in biodiesel.

综述了气相色谱法在生物柴油生产工艺研究中的应用，包括反应产物和生物柴油产品中脂肪酸甲酯含量和分布的测定，单脂肪酸甘油酯、二脂肪酸甘油酯和三脂肪酸甘油酯含量的测定，游离脂肪酸含量的测定以及微量甲醇含量的测定等。

The results show that the ore-controlling strata or source beds related to gold deposits all show high background values of gold; the gold and other associated ore-forming elem...

微量金数据除部分样品运用化学比色法外，主要采用化学浓集-发射光谱测定方法。实验结果表明，化学-光谱法测定微量金相对平均误差为18％；相对平均偏差重复性和再

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。