光度

Puertin is representative of isoflavone compounds. To study the mutual reaction between puertin and Cu, Ca, Fe, Zn, Al, and Mg which exist in Pueraria, methods of conductometric titration, spectrophotometry. and pH-potentiometric titration is used.

以葛根素作为异黄酮类化合物的代表，用电导法、分光光度法、pH电位法研究葛根素与葛根中含量较多的微量元素Cu、Ca、Fe、Zn、Al、Mg在水溶液中的配位作用，计算了金属配合物的稳定常数。

Methods The flavonoids were extracted by ethanol as the solvent from Bragica juncea coss with ultrasonic wave and ethanol extraction .

方法采用超声波乙醇浸提法从芥菜中提取黄酮类物质，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，用芥菜总黄酮对羟自由基清除作用进行实验。

When the ETT-TL tip was placed inside the glottic opening, a brightest; round or oval glow could be consistently seen in the midline just below the cricothyroid junction in each cadaver.

当气管内管/ TrachlightTM 组装单位的尖端放置入声门，每一个大体老师都可见光度最大、圆形或椭圆形的亮光，而位置就正好在正中线、环状软骨甲状软骨交界处的下方。

The structure of cuprous oxide nanospheres was characterized by XRD, SEM, BET and UV-vis spectrophotometer.

采用XRD、SEM、BET和紫外-可见分光光度法等手段对所制备的纳米Cu2O开口空心球进行表征。

MethodsThe flavonoids were extracted with ethanol as the solvent from Cyperus rotundus by ultrasonic wave. Spectrophotometry was used to determine the flavanone of Cyperus rotundus .

方法采用超声波乙醇浸提法从香附中提取黄酮类物质，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。

Using microorganism fermentation cultivation technique, with escherichia coli strains of ASP - 311 for fermentation, with rich fumaric acid as the substrate to ferment produce l-aspartic acid, Study the result of activated carbon, and the temperature, the use of bleaching time and discoloring pH value of various conditions, aspartic acid decoloring effect, and finally: the concentration of carbon, decoloring temperature of 1.0% 60 degrees, the bleaching time for 0.5 h, pH for 6, in this condition, the result is the absorbency of decolour 3.2%, to achieve the best effect.

本文利用微生物发酵培养技术，以大肠杆菌ASP-311为发酵菌株，以富马酸为底物来发酵生产天冬氨酸；研究了发酵液中活性炭的使用量、脱色的温度、脱色的时间以及pH值等各种条件对L-天冬氨酸脱色效果的影响，最终得出：活性炭的浓度为1.0%，脱色温度为60℃，脱色时间为0.5h，pH为6，在此条件下，发酵液的吸光度为3.2%，此时的脱色效果达到最佳。

Methods: A sepsis model of mice made with cecum deligation and perforation was established,and a radioimmunoassay for FABP and 96-well spectrophotometry assays for myeloperoxidase and superoxide dismutasewhich were related with clearance of free radicals,were used to detect their levels in lung and intestine ho...

建立小鼠盲肠结扎致脓毒症模型，采用放射免疫分析法和96孔分光光度分析法分别检测肺肠组织匀浆液中FABP及髓过氧化物酶、超氧化物歧化酶等与自由基清除相关的酶的水平、同时以HE染色方法观察肺肠组织病理组织学改变。

A spectrophotometry method, which based on the reaction of diacetyl monoxime and urea in acidic solution, was established for determination urea in bovine milk.

根据二乙酰一肟与在酸性条件下尿素的反应，建立了一种分光光度法快速测定牛奶中尿素含量的方法，该方法可以定性和定量测定牛奶中尿素含量。

According to the yogurt's complex ingredients and the particular content of diacetyl , this article studied the determination of diacetyl in yogurt with ultraviolet spectrophotometer.

本文根据乳品中的成分的复杂性及双乙酰含量的特殊性，研究了以鲜奶为溶剂制作双乙酰标准曲线和紫外分光光度法测定乳品中双乙酰含量的测定方法。

The effects of iron level in diatomite and pH value of beer on antioxidative activity of beer is studied in this paper by DPPH-spectroscopy.

本文采用 DPPH 分光光度法，研究了硅藻土的铁离子含量和啤酒 pH 值在过滤阶段对啤酒抗氧化力的影响。

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。