光度测定

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。

Methods Male SD rats were given drinking water containing manganese chloride (MnCl24H2O 0.5g/L and 5.0g/L respectively) for 60 days. At the end of experiment, all the rats of the manganese-exposed groups and control group were decapitated after anaesthesia with 2% sodium phenobarbitone intraperitoneally, the brains were removed and activities of alanine aminotransferase, aspartate aminotransferase, alkaline phosphate, cholinestarase, monoamine oxidase, superoxide dismutase, nitric oxide synthase, and levels of glutathione, maleic dialdehyde, and proteins were biochemically analyzed.

大鼠经饮水连续染锰（MnCl24H2O 0.5g/L和5.0g/L）60d后，应用荧光光度比色法测定新鲜脑组织匀浆的谷丙转氨酶、谷草转氨酶、碱性磷酸酶、胆碱酯酶、单胺氧化酶、氧化亚氮合酶、超氧化物歧化酶活性和谷胱甘肽、丙二醛、蛋白质含量，并设生理盐水对照组。

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。

Optical rotation of solutions should be determined within 30 minutes of preparation.

溶液的旋光度应该在溶液配制好30分钟内进行测定。

NOS also reflect the generation of NO, NOS was measured by a method which the oxidation of oxyhaemoglobin to methaemoglobin by NO is monitored spectrophotometrically. The absorption difference between 401 and 421nm was continuously monitored with a dual-wavelength recording spectrophotometer.

由NOS催化生成的NO与氧合血红蛋白反应生成高铁血红蛋白，反应2秒钟完成同时出现A〓和A〓吸光度的变化，测定该变化，根据此时高铁血红蛋白的摩尔吸光系数即可计算出NOS的比活性。

Methods Mercuric chloride was absorbed and gathered by dilute sulfuric acid solution, and then detected by hydride atomic fluorophotometry.

采用稀硫酸溶液吸收、富集，氢化物原子荧光光度法测定车间空气中的氯化汞。

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 gassypol was extracted from cotton root bark by the method of diethyl ether.

方法利用乙醚超声萃取法提取棉花根皮中的棉酚，洗涤、浓缩得到棉酚粗产品；研究了各种实验条件对棉酚产率的影响，采用分光光度法测定该成分含量，作为评价指标。

Morphological study and TUNEL method were used to observe apoptosis cells and the APO% was determined.

采用形态学观察、原位缺口末端标记的方法检测细胞凋亡的结果，并用火焰原子吸收分光光度法测定细胞内钙含量。

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。