光度测定

The paper put forward the new method of using the spectrophotometry testing the concentration of nonionic surfactant with KI-I2 chromogenic agent.

提出了用KI-I2做显色剂的分光光度法测定非离子表面活性剂JFC浓度的新方法。

By experiment, it shows that the chromogenic condition of photometric determination with chromeazurol S is improved, and the accuracy and sensitivity are also raised for the introduction of CTAC.

经试验，CTAC的引入，不但改善了铬天青S光度法的显色条件，而且提高了测定的准确度和灵敏度。

Emission spectra,spatial distribution of fluorescence,relations between chromophoric dissolved organic matter fluorescence and absorption coefficient, dissolved organic carbon concentration were studied based on the measurements from December 2004 to March 2005 in Lake Taihu.

利用紫外分光光度法和荧光法测定了2004年12月到2005年3月太湖不同湖区有色可溶性有机物的吸收和荧光，分析了CDOM荧光发光光谱、空间分布及其与吸收系数、溶解性有机碳浓度之间的关系。

In the experiment, the Cichorium glandulosum Boiss et Huet powder was digested with HNO3 by microwave digestion before determination.The eightmet alelements, potassium, nickel, calcium, magnesium, iron, manganese, copper and zinc, in Cichorium glandulosum Boiss et Huet were determined by FAAS.

试验采用HNO3 作为消解液，利用微波消解的方法处理样品，原子吸收分光光度法测定维吾尔药材菊苣根中钾、镍、钙、镁、铁、锰、铜和锌八种微量、常量元素的含量，精密度和回收率较好，回收率控制在92.25%～110.5%之间，相对标准偏差RSD曑3.88%。

Methods: Liver microsome was preparated from normal rat and human liver, which was to he treated with a series of concentrations of CsA or coadministration with Flu or MP. The activities of CYP3A in the microsomes were detected by using erythromycin as substrate.

制备大鼠和人肝微粒体，用不同浓度的CsA作用、加或不加MP、Flu，以红霉素为底物，经过NADPH系统孵育后，利用分光光度法测定人和大鼠肝微粒体的红霉素N-脱甲基酶活性。

Objective:To establish a new method for the determination of total triterpenes from Poria cocos.

目的：运用分光光度法测定茯苓药材中有效成分总三萜的含量，从而控制药材质量。

Aim To find a new method that the trace Ge in the coix is determined with fluorescence spectrophotometry.

目的 以荧光分光光度法为基础建立测定薏米中痕量锗的新方法。

Methods The flavonoids were extracted by ethanol as the solvent from Bragica juncea coss with ultrasonic wave and ethanol extraction .

方法采用超声波乙醇浸提法从芥菜中提取黄酮类物质，对所提取的黄酮类物质进行验证，并用分光光度法测定含量，用芥菜总黄酮对羟自由基清除作用进行实验。

MethodsThe flavonoids were extracted with ethanol as the solvent from Cyperus rotundus by ultrasonic wave. Spectrophotometry was used to determine the flavanone of Cyperus rotundus .

方法采用超声波乙醇浸提法从香附中提取黄酮类物质，对所提取的黄酮类物质进行验证，并用分光光度法测定含量。

For the smelting slags of exhausted automobile catalyst, a method for determination of trace amounts of platinum and palladium by plus-dual-wavelength overlapping spectrophotometry in dibenzyl dithiooxamide-SnCl2 system was developed.

针对失效汽车催化剂火法熔炼渣，研究了采用正峰双波长叠加，二苄基二硫代乙二酰胺-SnCl2体系萃取光度法测定渣中痕量铂钯的方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。