标准测定

Results:There was no significant difference in mensuration between microwave disgestion-acetylacetone-formaldehyde spectrophotometry method and international standard Kjeldahl determination.

结果：微波消解-乙酰丙酮甲醛分光光度法与国标凯氏定氮法相比测定结果差异无显著性，该方法线性范围在5~100μg/10 m l，相关系数r=0.9997，检出限为0.546μg/10 m l，相对标准偏差为1.29%~2.21%，加标回收率

Based on their distinctive optical properties, a method of determining the specific rotation was set up to distinguish these two kinds of chemical materials in the standard for detection of levogyrate preparati.

二者的差别在于盐酸噻咪唑为外消旋体，盐酸左旋咪唑为左旋体，通过利用两种物质的光学特性，在盐酸左旋咪唑制剂的检测标准中设立比旋度测定方法，从而将两种不同的物质加以区

Excised the condylar cartilage of femur after one month for the observation by photo-microscope and transmissive electron microscope.Each case was recorded according to Mankin's index.Detected the activity of the superoxide dismutase.Results:The knee joint's synovium of the OA model group were found adhesion,swelling and overgrowth.

对照组不作任何处理。1月后处死家兔并切取家兔股骨内髁关节软骨作光镜及透射电镜观察，光镜所见依据Mankin's评分标准评分，测定血清中红细胞超氧化物歧化酶活性并作统计学处理。

In this paper, the polymerization kinetics, reaction mechanism, viscosity, molecular weight and MWD of the ring-opening polymerization of cyclosiloxane in the presence of water will be investigated expermentally and analyzed mechanistically in detail.

就具体内容而言，本论文主要进行了以下几个方面的工作：建立反应混合物转化率与凝胶渗透色谱谱图峰面积的标准曲线，采用GPC测定反应混合物转化率和聚合物的分子量及分布。

The air and the deionized water were considered as standard examples and the densities of diethylene glycol monobutyl ether were measured over a temperature rang of 20 ℃ to 60 ℃ with an Anton Paar DMA60 DMA602 vibrating tube densimeter.

以空气和去离子水为标准样，利用Anton Paar DMA60 DMA602振动管密度计测定了常压下二乙二醇丁醚在20—60℃间几乎每相间1℃密度数据。

The character of hemagglutination of the virus could be inhibited by the antiserum of Newcastle disease virus.According to the international standard and method of virulence judgement of NDV, we measured the average death time、the minimal lethal dose and the median infective dose(EID50) of chicken embryos and the intracellular inoculation pathopoiesis index of 1-day-old chicks.

参照国际上规定的新城疫病毒毒力判定标准及其方法对分离毒株ZH1、ZH2进行了鸡胚最小致死量和平均死亡时间、鸡胚半数感染量(EID50)以及1日龄鸡脑内接种致病指数测定，结果ZH1、ZH2株的MDT为52h和44 h，EID50为106.4/ 0.1mL和108.64/ 0.1mL，ICPI为1.93和1.975。

As a result, the determination of the water content is important in demonstrating compliance with the Pharmacopeial standards.

因此，水分含量的测定对于验证样品与药典标准的一致性是很重要的。

With Zn〓 used as an internal standard, the contents of Ni, Co, Cu in real mineral samples were determined successfully in the imidazole or phenylamine systems.

以Zn〓作内标，采用内标标准曲线法分别在咪唑和苯甲胺缓冲液体系中对镍矿样中Ni，Co，Cu的含量进行了测定。

Laser micro-spectral analyzer,coupled with CCD spectrometer,was used to determine Sr in long-afterglow phos- phor coat in argon atmosphere at reduced pressure in this experiment and the accuracy of this method on analyzing coating materials was studied.

实验中以SrⅡ421.552nm为分析线，采用三标准试样法，由计算机拟合LogI～LogC工作曲线，对锶进行了测定。

The fresh chicken feces were obtained from different age 18 healthy chicken, and were not detectedchlortetracycline. The mixture standard solution of CTC and OTC was added in fresh chicken feces at the concentration of 0.5, 1.0 and 4.0ug/ml respectively. The chicken feces were divided to two groups,one were put in the incubator under photophobic condition; another were under the natural illumination.Samples were collected after 0, 0.5, 1, 2, 3, 5, 7, 9, 12 and 15 days, The concentration of chicken feceswas determined by HPLC. According to the theory of degradation kinetics, we fitted the changed trendof concentrations in chicken feces under different time and studied the degradation characteristics ofchlortetracycline in chicken feces.

选取不同日龄健康鸡18只，实验期新鲜鸡粪，，经检测不含四环素类药物，然后加入金霉素标准液，使得各样品中制得的相应药品的浓度为0.5ug／mL、1.0ug／mL、4.0ug／mL，分为两个实验组，第1组放入培养箱中避光黑暗条件下；第2组置于室外自然光下，定时取样，取样时间为0、0.5、1、2、3、5、7、9、12和15d，鸡粪中药物的浓度用本实验建立的高效液相色谱法测定，根据药物降解动力学原理，对鸡粪中药物的浓度随时间的变化趋势进行曲线拟合，研究金霉素在环境鸡粪中的降解动态规律。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。