查询词典 spectrophotometry

It mainly includes the new achievement of researches on iodometric method,spectrophotometry method,chemical-luminescence method, electrochemical method etc.

介绍了近年来国内外的臭氧浓度检测方法，主要包括碘量法、分光光度法、化学发光法、电化学法等方面研究的新成果。

The lower detection limit was 0.0006 mg/L Conclusion: Compared with the conventional isonicotinic acid 3-methy-1-pheny 1-5-pyrazolone spectrophotometry method, the advantages of the method are auto-sampling, rapid analysis speed and lower reagent consumption, etc.

与传统异烟酸－吡唑啉酮分光光度法相比，该方法具有自动进样、分析速率快、试剂耗量低等优点，可应用于大批量常规地表水分析。

Spectrophotometry was used to determine and extract the content of the flavanone from the leaves of Jasminum sambac Air.

目的为充分利用茉莉花叶植物资源，避免资源的浪费，探讨茉莉花叶总黄酮的提取及鉴别方法。

The present studies developed a method of spectrophotometry for quantitative determination of the total concentration of Jasminum flavonoids. The result showed the optimal determination wavelength was 500nm.

研究确定了最佳检测波长为500nm，以芦丁为标准品，在100～800μg/mL范围内，浓度和吸光度呈良好的线性关系，回归方程为A=0.0008C+0.0248，相关系数r=0.9999，回收率在96.5％～105％之间。

Results:There was no significant difference in mensuration between microwave disgestion-acetylacetone-formaldehyde spectrophotometry method and international standard Kjeldahl determination.

结果：微波消解-乙酰丙酮甲醛分光光度法与国标凯氏定氮法相比测定结果差异无显著性，该方法线性范围在5~100μg/10 m l，相关系数r=0.9997，检出限为0.546μg/10 m l，相对标准偏差为1.29%~2.21%，加标回收率

Objective To establish a method of ultraviolet spectrophotometry to detect Konjak glucomannan in weight reducing heath food.

目的〕建立了紫外分光光度计法测定减肥保健品中魔芋葡甘露聚糖的检测方法。

The procedure of thin layer chromatography-spectrophotometry analysis of total triterpene in Lagerstroemia specious L.

采用薄层色谱分离-分光光度法测定大叶紫薇叶中的总三萜含量。

Methods The flavones were extracted by using ethanol as the solvent from Leonurus with ultrasonic wave and extraction method.A spectrophotometry was used to extract and check the flavones of Leonurus.The effect of Leonurus on scavenging of hydroxyl radicals was studied.

采用超声波乙醇浸提法从益母草中提取黄酮类物质，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，用益母草总黄酮对羟自由基清除作用进行试验。

MethodsDetermination of flavonoids in lithocarpus polysachyus rehd leaves by three-wavelength spectrophotometry.

方法采用三波长分光光度法测定多穗柯叶中黄酮含量。

Methods Total flavanone of Humunus Lupulus L. was extracted with ultrasonic wave technique. Its content was determined with spectrophotometry.

方法］采用超声波技术辅助乙醇回流法提取啤酒花总黄酮，用分光光度法进行了含量测定。

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。