光度测定

Color development reaction between xylenol orange and Co2+ was systematically studied.

系统研究了二甲酚橙与Co2+的显色反应，根据这个反应建立了采用二甲酚橙分光光度法测定水中的微量钴。

First derivative spectrophotometric method for determining of micro samarium in electroplating solution is given,using xylenol orange as color reagent.

提出了利用二甲酚橙为显色剂测定电镀液中微量钞的一阶导数分光光度法。

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。

Methods Ascorbic acid was determined by inhibition kinetic spectrophotometric method, which was based on the inhibition effect of ascorbic acid on the nitrite catalyzed oxidation of xylenol orange by potassium bromate in dilute sulfuric acid medium.

在稀硫酸介质中，利用抗坏血酸对亚硝酸根催化溴酸钾氧化二甲酚橙的阻抑作用，用阻抑动力学光度法测定抗坏血酸。

Ferrous Oxidation in Xylenol Orange is a spectrophotometry to detect primary product of Lipid peroxidation in plasma -- Lipid HydroperoxidesIn acid dilute solution,ROOH can oxidate Fe2+ into Fe3+,and Fe3+ can combine with Xylenol Orange to produce a kind of bluish - purple compound.

本文介绍一种用FOX法测定血浆中脂质过氧化的初级产物——脂质氢过氧化物的分光光度法。

The kinetics of thermal oxidation of rosin and abietic acid absorbed on the polyethylene film were respectively studied.

设计了松香和枞酸在聚乙烯膜上的氧化反应器，建立了枞酸在聚乙烯膜上的紫外分光光度分析方法，跟踪测定了松香和枞酸氧化反应的过程。

The kinetics of thermal oxidation of rosin and abietic acid absorbed on the polyethylene film were respectively studied. The kinetic equation of heat oxidation was determined by UV spectrophotometry.

设计了松香和枞酸在聚乙烯膜上的氧化反应器，建立了枞酸在聚乙烯膜上的紫外分光光度分析方法，跟踪测定了松香和枞酸氧化反应的过程。

Methods: Streptomycin and the derivatization reagent o-phthalaldehyde occur Amine Acetalization generating derivative product with UV absorption and determined the absorbance in special wave length, obtained streptomycin residues in samples then compare with high-performance liquid chromatography.

将试样与衍生化试剂邻苯二甲醛进行胺缩醛反应，即化学衍生处理，生成具有特定波长的紫外吸收的衍生产物，测定其吸光度，求出样品中链霉素残留量，并与高效液相色谱法比较。

A method for determination of iron based on the inclusion of iron ?-amido black 10B with β-CD in acid solution has been developed.

基于在酸性缓冲溶液中Fe一氨基黑10B与β-环糊精的包合反应，发展了测定铁的分光光度法，以试剂空白作参比，包合物的最大吸收波长位于642nm处，摩尔吸光系数ε为1.0×104L，Fe在0.4～3.6μgmL的浓度范围内符合比耳定律。

A description is given of the analytical method for the determination of the urea content in slow-release urea by the p-dimethyl aminobenzaldehyde spectrophotometry.

摘要介绍用对二甲氨基苯节醛分光光度法测定缓释尿素中尿素含量的分析方法。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。