标准测定

The principle and method for determining the total acid number of oil product by voltammetric techniques was described,the results of voltammetric techniques and standard method analysis were compared.

介绍了用伏安法测定石油产品总酸值的原理、方法，并将伏安法测定润滑油酸值的结果与标准方法测定结果进行了比较。

At first, we studied the assay of cellulase activities because there is not a standard.

首先，针对目前纤维素酶活力的测定没有统一的标准，测定结果无法比较的现状，论文的第一部分对纤维素酶活力的测定进行了研究。

The measuring device is structured by including a He-Ne laser; a beam expander, a soft aperture slot and a off-axis parabolic mirror to be measured are arranged in turn along the direction of the emergent laser beam direction of the He-Ne laser; a standard cross hair and a micro objective are arranged in turn on the direction of the reflected beam of the off-axis parabolic mirror; the micro objective is arranged on the focus of the off-axis parabolic mirror; the focus is imaged on an area array CCD; the output end of the area array CCD is connected with a computer; the off-axis parabolic mirror is fixed on a five-dimensional electric adjusting frame.

一种离轴抛物面镜点聚焦能力测定装置和测定方法，测定装置的构成包括：一台He-Ne激光器，沿该He-Ne激光出射激光束方向依次设置扩束器、软边光阑和待测的离轴抛物面镜，在该离轴抛物面镜的反射光束方向依次设置标准叉丝和显微物镜，该显微物镜位于所述的离轴抛物面镜的焦点，所述的焦点成像于面阵CCD上，该面阵CCD的输出端接计算机，所述的离轴抛物面镜固定在一五维电动调整架上。

The correlation coefficient is 0.9991. The method has been applied to the determination of trace cadmium in galvanization waste water with the relative standard deviation of 2.5%-3.2% and the recovery of 98.0%-102.0%. The results of this method are in good agreement with those of AAS.

方法用于电镀废水中微量锡的测定，相对标准偏差为2.5%~3.2%，加标回收率为98.0%-102.0%，测定结果同原子吸收光谱法的测定结果相吻合。

The standard data for mathematical model establishment come from the figure such as water content by Microcoulomb equipment, solid content by loss of weight of Volatilization and PTMEG relative molecular mass by Gel Chromatography.

建立校正模型的标准数据采用微库仑法测定水含量，挥发失重法测定固含量，凝胶色谱法测定PTMEG的数均相对分子质量。

Based on the analysis and comparison of various methods of mensuration of effective ingredients of indigowoad root,phenol-vitriolic colorimetry has been choosen to be the method of mensuration of amylose in indigowoad root, and standard amylose graph has been made,in which c=22.476A+0.5309, correlation rate r=0.9970; Direct colorimetry has been choosen to be the method of mensuration of indigotin and Indirubin,and based on all above,the maximal absorb wavelenghes of indigotin and Indirubin have been determined through experiment.

在分析比较各种板蓝根有效成分测定方法的基础上，选用苯酚-硫酸比色法作为板蓝根多糖的定量测定方法，作山了多糖的标准曲线：c=22.476A+0.5309，其相关系数r=0.9970；选择直接比色测定法作为靛蓝、靛玉红的测定方法，并在此基础上通过试验确定了靛蓝、靛玉红的最大吸收波长及显色稳定性。

The paper determines compaction degree of subgrade making use of pumped sand, cutting ring ,nuclear density instrument and drop hammer frequent mensuration methods.

采用灌砂法、环刀法、核子密度仪法、落锤频谱式快速测定仪法4种方法对检测路基压实度的测试结果进行了比较分析；并以灌砂法作为现场测定压实度的标准方法，将其他方法与灌砂法进行回归标定，得出了相关关系，进一步证实了采用灌砂法作为路基压实度检测的标准方法是值得推广的。

Methods In the conventional internal quality control in the control specimens after the test day, a specimen which total protein result was 60-80 gL^(-1), and albumin result was 30-50 gL^(-1) was selected from the first ten specimens every day, the specimen's TP and ALB results were retested after 3 hours. The difference between the two test results and the difference of the standard deviation were calculated every day for 40 days. Extreme difference quality control chart was established by control limits of range which was calculated by the standard deviation.

在常规室内质控在控后开始检测标本，每天从前10份标本中选出1份总蛋白60~80 gL^(-1)、白蛋白30~50 gL^(-1)的标本，3 h后再重测1次该标本的TP、ALB，每天计算2次测定结果的差值和差值的标准差，连续40个工作日，利用标准差计算双份测定极差的控制限，建立极差型质控图。

By using standard addition method and standard curve method, the quantity of aesculin in Cortex Fraxini was determined to be 0.10% and the aesculetin was 0.36%, respectively.

利用标准曲线法和标准加入法对秦皮药材中秦皮甲素的含量进行测定，结果为0.10%，对秦皮乙素的测定结果为0.36%。

The average recoveries for lincomycin and clindamycin ranged from 80% to 110% in replicate sets of honey samples spiked with the drug concentrations of 1.0, 5.0 and 20.0 μg/kg, and the relative standard deviations were less than 8% for intra-day and 15% for inter-day determinations.

在1.0，5.0，20.0 μg/kg 3个添加水平，两种抗生素的平均回收率范围为80%～110%，日内测定结果的相对标准偏差小于8%，日间测定结果的相对标准偏差小于15%。

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。