光度测定

Objective: To establish a method for determination of manganese in urine by GFAAS.

目的：建立石墨炉原子吸收分光光度法测定尿中锰的方法。

In this article, the author extracted flavonoid from Hibiscus manihot L by alcohol reflux, and measure the effects of different concentration flavonoid extracts on tyrosinase activity using the Spectrophotometry.

利用乙醇回流提取法提取金花葵花中的总黄酮，采用分光光度法测定不同浓度金花葵总黄酮对酪氨酸酶活性的影响。

Using carubinose as standard, DNS as color developing reagent, the content of mannan in coconut shell was indirectly determined by spectrophotometry.

以 D-甘露糖为标准，DNS作显色剂，用分光光度法间接测定椰子壳中甘露聚糖的含量。

Objective To establish a method for rapid determination of the lead content in marine food products by fluorescence spectrophotometry.

目的 建立人工养殖海产品中铅的荧光分光光度快速测定方法。

Time and temperature of display colour has been studied on meterage absorbency.

采用分光光度法在540nm处进行烟草中的多酚总量测定实验。

Methanal in air was collect ed using water as absorber,and then determined rapidly and simply by referring standard curve.

用水吸收法采集空气中的甲醛，以吸光度差值△ A与甲醛含量标准曲线对照，快速简便测定微量甲醛。

While erthrocyte, hemoglobin and Hela cell were under oxidative damage induced by the hydrogen peroxide (H2O2) or tert-butyl hydroperoxide on different concentrations of dihydromyricetin, hemolysis rate of erythrocyte and methemoglobin converted from hemoglobin was estimated by ultraviolet-visible absorption spectroscopy. Whereas mmalondialdehyde from erythrocyte was measured by thiobarbituric acid colorimetry, the cellular viability of Hela cell was examined using MTT 3-(4, 5-dimethylthiazol-2-yl-2, 5-diphenyl tetrazolium bromide assay.

在不同的二氢杨梅素浓度下，用过氧化氢或过氧化特丁烷对红细胞、血红蛋白和Hela细胞进行氧化伤害，以紫外－可见光分光光度法检测红细胞溶血率和由正常血红蛋白生成的高铁血红蛋白，硫代巴比妥酸法测定红细胞中的丙二醛，MTT法检测Hela细胞的活力。

The results of the experiments indicate that metol and p-benzenediol can be catalyzed on the SAMs.

测定米吐尔和对苯二酚的常用方法有光度法[1 ] 、铈量法[2 ] 和电化学法[3] 。

The incubation system of chicken hepatic microsome was successfully established. The activity of cytochrome P450 was determined by ultraviolet spectrophotometry.

在建立鸡肝微粒体体外孵育体系的基础上，采用紫外分光光度法测定细胞色素P450酶系的活性。

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.

製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。

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。