查询词典 spectrophotometry

The hydroxyl radical scavenging effects of safflower yellow, gardeniayellow, red radish color, purple sweet-potato red color and redcabbage color were detected in vitro with fluorescence spectrophotometry, andthe results make sure that all of the five pigments have some scavenging effects on thehydroxyl radical, though each pigment didn't have the same change trend.

用荧光分光光度法检测红花黄色素、栀子黄色素、红萝卜色素、紫甘薯色素、紫甘蓝色素等五种色素体外清除羟自由基的作用，结果证实SY、GY、RRC、PSPRC、RCC等五种色素对羟自由基都有一定的清除作用，每种色素的变化趋势不完全相同。

A review on the recent progress of the analysis of sodium cyclamate in more than a decade dealing mainly with the determination method by gas chromatography,thin-layer chromatography,high performance liquid chromatography,ion chromatography,ultraviolet spectrophotometry,single-sweep oscillopolarography is presented in this paper with some references.

本文综述了甜蜜素发展概况及其近10年来国内检测方法研究进展，包括色谱(气相、薄层、液相和离子)、比色法、极谱分析。

We have measured trace iron ion in engine oil by spectrophotometry accurately, with the absorption wavelength locates at 430nm and under the color system of Fe－Ammonium Sulfate－Sulfosalicylic acid－Ammonia. The results show that the relative standard deviation of this sample is 5.5%.

以Fe－硫酸铵－磺基水杨酸－氨水为显色体系，用分光光度计，在430nm的波长下，准确的测定了发动机机油中的微量铁。

Methods The content of griseofulvin in extractor is determined by UV spectrophotometry and the content of griseofulvin used as quality control criteria.

用紫外分光光度法测定灰黄霉素的含量。

ObjectiveTo develop the determination method of total triterpenoids in vanillin glacial acetic acid system by spectrophotometry.

目的建立香草醛-冰醋酸体系分光光度法测定毛老虎中总三萜酸的方法。

Methods Use purely physical process flow and spectrophotometry to introduce the method of which withdrawed the flavanone from corn silk, and check the flavanone which withdrawed from corn silk.

采用纯物理的工艺流程过程和分光光度法从玉米须中提取黄酮类物质，对所提取的黄酮类物质进行验证。

Zeeman effect of graphite furnace atomic absorption spectrophotometry was adopted to determine trace lead in environmental water samples, also the temperature raising procedure of graphite furnace and the effect of matrix modifier on the determination were studied.

采用塞曼效应石墨炉原子吸收法测定环境水样中的痕量铅，研究了石墨炉升温程序及基体改进剂对测定的影响。

Acetone-berberine quantitative method is recorded in J.P. X., but this method is complex, difficult and not accurate. In U.V. spectrophotometry determination, the absorbance of berberine will be disturbed by palmatine and other color constituents in these drug extracts. So we modified and used the T.L.C. scanning method and found that it is an accurate, prompt and useful method.

小蘗之定量法有日本药局方记载之Aoetone-Berberine重量法，，唯此法繁杂且误差大，如以分光光度法测定时，除小蘗成分外，尚会受到Palmatine等其他色素之影响，结果并不准确，故本次研完改用薄层层析斑点扫描法，发现其操作迅速、精确度亦高，极为适用。

The gemmological and mineralogical characteristics of the different coloured tourmaline samples from Minas Gerais State, Brazil, are studied by using the electron microprobe, X-ray photoelectron spectrometer, ultraviolet-visible spectrophotometry and Fourier transform infrared spectroscope.

利用电子探针、X射线光电子能谱仪、紫外－可见光光度计和傅里叶变换红外光谱仪对产自巴西Minas Gerais地区、不同颜色的彩色电气石样品进行了宝石矿物学特征研究。

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。