查询词典 spectrophotometry

objective:to make a comparative analysis of the total saponins content in polygalaceae phloem and xylem parts to guide clinical treatment.methods:we determined the polygalaceae total saponins content at the 575 nm with oleanolic acid as a reference substance and vanillin-perchoric acid as a developer by using uv-visible spectrophotometry.results:the total saponins content of xylem parts was 3.33%,and that of polygalaceae phloem was 0.69%.conclusion:the total saponins content in polygalaceae xylem parts is much more than that of phloem parts,the total saponins in polygalaceae mainly exists in xylem parts.

目的：对远志原药材木部及皮部中总皂苷含量进行比较分析，用以指导临床用药。方法：以齐墩果酸为对照品，香草醛－高氯酸为显色剂，采用紫外－可见分光光度法在575 nm处测定远志总皂苷含量。结果：以此方法对远志木部及皮部中总皂苷含量进行比较、分析，为远志皮部总皂苷含量为3.33 %、木部总皂苷含量为0.69 %。结论：远志中皮部总皂苷含量远远大于木部，远志总皂苷主要存在于根皮中。

An UV spectrophotometry for determining total coumarins in Angelica polymorpha Maxim.

建立紫外分光光度法测定白根独活中总香豆素的含量。

The spectrophotometry is suitable for the determination of total triterpenes from Poria cocos.

该方法操作简便，结果稳定，重现性好，可作为茯苓药材质量的有效监控手段。

The anodic oxidation reactions of butynediol and propiolic alcohol in the bright nickel electroplating were studied using ultraviolet spectrophotometry.

采用紫外分光光度法研究了丁炔二醇和丙炔醇在光亮镀镍过程中的阳极氧化反应，以期进一步认识添加剂在电镀过程中的作用机理。

The anodic oxidation reactions of butynediol and propiolic alcohol in the bright nickel electroplating were studied using ultraviolet spectrophotometry. The mechanism of the additives in the electroplating process was discussed.

采用紫外分光光度法研究了丁炔二醇和丙炔醇在光亮镀镍过程中的阳极氧化反应，以期进一步认识添加剂在电镀过程中的作用机理。

MethodsIn the solvent of 1 mol/L NaOH,using the reaction of the total components of water-soluble phenolic acidity in Danshen and the NaNO2-Al(NO3)3,the total components of water-soluble phenolic acidity in compound Danshen preparation(calculated with protocatechualdehyde )were determined by colorimetric spectrophotometry.

方法利用丹参中水溶性酚酸类成分与NaNO2-Al(NO3)3在碱性条件下的显色反应，比色法测定复方丹参制剂中水溶性酚酸的总量。

Secondly,UV spectrophotometry was adopted to research the combination action on SM_2 and SIZ with MAA and 4-Vp.The combination action of functional monomer with template molecules were produced in the results. Then,the prediction imprinting principle of SM_2 and SIZ were given. The diagrams of infrared spectrum were analysed in MAA and 4-Vp and IMPs of SM_2. It was discoved that the absorbability peak of C=C function group in the IMPs were turn to be very low ,but the function group of carboxylic acid and pyridyl in the IMPs were no evidence change, and the condition was created in the molecular recognition of MIPs. Thermal Analysis was adopted to research IMPs ,in which ,a better thermal stability and its decompose temperature were showed in the results.

其次，本文利用紫外分光光度法研究磺胺二甲嘧啶和磺胺异噁唑与甲基丙烯酸或4-乙烯基吡啶的结合作用，结果表明，溶液中的功能单体与模板分子之间产生了结合作用，并预测磺胺二甲嘧啶和磺胺异噁唑印迹机理；分别分析了功能单体甲基丙烯酸、4-乙烯基吡啶、磺胺二甲嘧啶和磺胺异噁唑分子印迹聚合物的红外谱图，经过对比发现制得的印迹聚合物中C=C双键峰很小，并且功能键羧酸键和吡啶氮没有明显变化，这为聚合物特异识别特性创造了条件；利用综合热分析仪，对分子印迹聚合物进行综合热分析，结果表明分子印迹聚合物具有较好的热稳定性，分解温度也较高。

An UV-spectrophotometry determination method for pyrogallic acid content was studied.

研究了用紫外分光光度法测定焦性没食子酸含量的一种新方法。

An UV-spectrophotometry determination method for pyrogallic acid content was studied.

研究了用紫外分光光度法。定焦性没食子酸含量的一种新方法。

The extraction process and content examination were studied with the methods of orthogonal test and spectrophotometry compared with Rutin; then the total flavonoids from Ramulus Mori were extracted with the methods of phytochemistry and examined.

以芦丁为对照品，运用正交设计试验及分光光度法，对桑枝总黄酮(the total flavonoids from Ramulus Mori，RMTF)的提取工艺、含量测定进行了探索；然后，采用植物化学方法提取并定性检测桑枝总黄酮，进而开展动物降血糖药理试验。

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。