光度测定

The procedure is based on the inhibiting effect of ascorbic acid on the enhancing effect of oxalate on the potassium dichromate-potassium iodide／rhodamine6G system.

基于在硫酸介质中，抗坏血酸对草酸根加速重铬酸钾－碘化钾/罗丹明6G这一反应体系具有抑制作用，建立了动力学抑制光度法测定抗坏血酸的新方法。

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。

The research takes grape,strawberry,spinach,celery and radish as the experimental materials,and studies the changesof total TAA which is measured according to the spectrophotometric method using DPPH as free radical generator.

本文以葡萄、草莓、菠菜、芹菜和萝卜等果蔬为试材，通过利用DPPH光度分析法测定了果蔬在贮藏过程中体内总抗氧化能力的变化情况来反映果蔬体内防御能力的变化趋势。

The released I2 could react with the starch to form a blue complex, which had the maximum absorbance at 574 nm. BOD5 in water could be calculated through the amount of dissolved oxygen before and after 5 days determined.

实验以碘酸钾与过量碘化钾生成单质碘，新生成的单质碘与淀粉生成的蓝色物质在574 nm处有最大吸收，采用光度法测定5天前后培养水样中溶解氧的含量来计算水样中BOD5。

Take the mature evening primrose seed as raw material extraction evening primrose oil, through the optimized craft, the determination influence factor, returns to parents' home by the 510nm wave length extinction value determination oxidation inhibitor and the emulsifier sees the star anise oil the oxidation influence.

急寻论文摘要翻译，请好心人帮帮忙1以成熟的月见草籽为原料提取月见草油，通过优化工艺、确定影响因素，以510nm波长的吸光度值测定抗氧化剂和乳化剂对月见草油的氧化的影响。

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。

Wistar rats were randomly divided into normal group, sham-operation group, 4 weeks diabetes mellitus model group (M4), 6 weeks diabetes mellitus model group (M6) and 8 weeks diabetes mellitus model group (M8). Behaviour was tested with Morris water maze and shuttle box test.

穿梭箱实验、Morris水迷宫实验检测大鼠认知行为学改变，免疫组织化学法、免疫印迹法、RT-PCR和酶联免疫吸附法检测BACE1；ELISA法检测Aβ在糖尿病大鼠脑组织中的表达，用图像分析仪测定吸光度值。

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。

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。

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。