分光光度测定

OBJECTIVE:Introduce spectrophotometry method for quantitative determination of pethidine hydrochloride.

王锦目的：用紫外分光光度法测定盐酸哌替啶制剂的含量。

After the waste catalyst sample during silicon coupling agent synthesis was pretreated with this method, the platinum in sample was determined by tin dichloride spectrophotometry.

硅偶联剂合成中废催化剂样品用本方法处理后以氟化亚锡分光光度法测定铂含量，分析值重现性好。

Sodium arsenite group and sodium arsenate group were made by 300 mg/L per day of sodium arsenite and sodium arsenate respectively. The mice were sacrificed after 10 months for liver function and pathologic examination. The expression of MMp-8, TIMP-2, Col-Ⅰ、Col-Ⅲ mRNA were detected with real time flourescence quantitative PCR. The result was controlled with 18s.

亚砷酸钠组和砷酸钠组给予普通饲料和砷溶液。10个月后处死小鼠，血清进行肝功能检测；苏木素－伊红染色部分肝组织；Trizol-酚－氯仿一步法提取小鼠肝组织总RNA，紫外分光光度法测定总RNA浓度及纯度，实时荧光定量PCR法测肝组织中MMP-8、MMP-2、Col-Ⅰ、Col-Ⅲ mRNA的表达，以18S基因作为质控。

Spectroscopic analysis and Color value method were adopted to determine the absorbency and to measure the content of Safflower Red,respectively.

本文对红花红色素的超声提取方法进行了研究，通过单因素试验和正交设计试验确定超声提取红花红色素的影响因素并筛选其优化提取条件，采用分光光度法测定其含量，并用色价来衡量。

The industrial magnesia and vitriol are used to produce magnesium sulfate in this paper, and the simulated wastewater is prepared using magnesium sulfate and kaolin. The flocculating effect of polyacrylamide, cationic polyacrylamide and anionic polyacrylamide is studied and compared through measurement of absorbency by spectrophotometer.

利用工业氧化镁和硫酸制备一定浓度的硫酸镁，结合高岭土配制氧化镁烟气脱硫的模拟废水，通过分光光度计吸光度测定了聚丙烯酰胺、阳离子型聚丙烯酰胺和阴离子型聚丙烯酰胺在模拟废水中的絮凝效果。

Methods The different extractions of astragalus root under different concentrations of ethanol and temperatures were compared.

采用紫外分光光度法测定黄芪皂苷、多糖含量，比较不同乙醇浓度、温度对水提和醇提黄芪的影响。

Phthalic acid and o-toluic acid were made with sacrificial anode method.

采用红外光谱、紫外光谱对反应产物进行表征，以分光光度法进行定量测定。

The concontration of pentachlorophenol in the water was determined by opectrophotometry.

采用分光光度法测定水质中的五氯酚含量。

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。

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。