浓度测定

Fluorometric assay for norfloxacin uptake by bacteria showed the concentration of fluroquinolone-resistant isolates was same as that of the sensitives.

使用荧光分光光度计对细菌体内的诺氟沙星含量进行测定，结果发现耐药菌内诺氟沙星的聚积浓度与敏感菌相同。

With a twin-screw extruder to prepare polypropylene / 8 ether bromide pellet, and injection molding into sheet samples, quantitative analysis of different PP / 8 the sample surface, eight bromine bromine ether ether precipitation changes with time, Using X-ray photoelectron spectroscopy on the sample surface concentrations of bromine atoms ...

用双螺杆挤出机制备了聚丙烯/八溴醚粒料，并注塑成片状样品，定量测定了不同PP/八溴醚样品表面上八溴醚析出量随时间的变化，用X-射线电子能谱对样品表面溴的原子浓度。。。

The rheological properties and effect of concentration, molecular mass and temperature on viscoelastic of β-Glucan were studied using AR-500 rheometers. The results show that oat β-Glucan solution exhibited a shear-thinning behavior.

以中国山西产燕麦为原料提取制备燕麦β-葡聚糖产品，采用动态流变仪测定动态黏度和黏弹性能指标，利用计算机拟合牛顿幂律方程和Maxwell方程，系统考察了β-葡聚糖浓度、分子量、温度等因素对燕麦β-葡聚糖流体流变性能和黏弹性能的影响。

Methods After injecting different doses of cephalosporins(100, 200, 300, 400μg) into vitreous body of rabbits, we studied the active change of retinal enzymes at different time and observed the histological and ultrastuctural changes of retinae.

方法以不同浓度的先锋霉素Ⅵ（100，200，250，300，400μg）行兔眼玻璃体腔内注射，用酶组织化学染色法测定注射后不同时间（1，3，7d）视网膜琥珀酸脱氢酶和乳酸脱氢酶活性的变化，并观察对视网膜组织结构及超微结构的影响。

The hydrolysis kinetics of two salicylates (n-butyl salicylate, phenyl salicylate) are studied in CTAB surfactant solution by using UV-vis spectroscopy.

应用UY—vis法，在不同温度条件下，对水杨酸酯在CTAB溶液中的水解反应进行跟踪，测定了不同浓度的表面活性剂存在下的反应速率常数，得出CTAB对其反应是禁阻作用。

The factors of temperature, light and salinity concen, with 3 levels were set up to make the germination experiment of cowpea seed. The germination rate was calculated and the catalase and peroxidase activity in cotyledons and radicles were investigated.

方法］设置3个水平的温度、光照、盐浓度进行豇豆种子发芽试验，计算发芽率，测定胚根和子叶中的过氧化氢酶和过氧化物酶活性。

Methods The Chinese herbal was pureed, and adopted the methods of agar dilution recommended by NCCLS to investigate the MIC of Chinese herbal on the three different kinds of bacteria.

将黄连、黄芩制成煎剂，采用美国临床实验室标准化委员会推荐的琼脂稀释法，测定此2种药物对3种细菌的最小抑菌浓度。

The concentration of adrenocortical hormone in blood plasma of fetus' body was determined.

在①里取出胎儿后，切断头部，收集血液，测定肾上腺皮质激素的浓度。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

In the pot experiment, the lead ion concn. in the dry soils was set as 0, 100, 500, 1000, 2000 and 3000 mg/kg, the content of Pb in aerial parts and root of M. sativa and B. juncea were detected and the total migration amount of Pb, root tolerance index and enrichment coefficient were calculated.

方法］采用盆栽试验，土壤中铅离子浓度为0、100、500、1000、2000、3000 mg/kg干土，测定紫花苜蓿、印度芥菜地上部和根部的铅含量，计算铅的迁移总量、根系耐性指数、富集系数。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。