标准测定

The determination of free acidity with the presence of rare ,uranium,thorium andiron,etc is studied.

研究了在稀土，铀，钍及铁等元素存在下自由酸度的测定，标准回收完全，适用于稀土料液自由酸度的测定

The method is applied to determine trace Mn in aniseed and milk powder samples with the accurate results.

9997，用该方法测定调味料八角和奶粉中的微量锰，测定结果的相对标准偏差为 0 。

The average standard deviation of six determinations is 0.48%. The method was applied to the determination of omeprazole in capsules with satisfactory results.

药物浓度在20-300mg/L范围内服从比耳定律。6次测定结果的相对标准偏差为0.48%，利用本法测定了奥美拉唑胶囊中有效成分的含量，结果令人满意。

Methods Five hundred and thirty-three hepatitis B patients and 40 healthy persons were chosen as study subjects. PT, INR and PTA values were detected by ACL-200 coagulometer and reagents, seral ALT values were detected by CX-9 biochemical apparatus, data were analyzed with ANOVA and q test.

对某院533例乙肝患者及40例健康对照者，采用 ACL-200型凝血仪及配套试剂测定PT，INR及PTA值，采用贝克曼CX-9生化仪及配套试剂测定ALT值；数据以平均数和标准差进行方差分析和q检验。

In this work, the digital analysis of six Al-based standard alloy samples with different content of Mg has been performed. Using spectra of Mg 518.36 nm as the analysis spectrum line, Cu 510.55 nm and Fe 510.75 nm as comparison spectrum lines separately, quantitative analysis has been made.

对6种不同镁元素含量的铝合金标准样品进行了数字化分析测定，探索了选用Mg 518.36 nm作为分析谱线，分别选用Cu 510.55 nm和Fe 510.75 nm作为比较谱线进行定量测定的方法。

The digital analysis of the three standard samples of the Al-based alloy with different content of Cu, and the probe into the quantitative analysis that employs the spectrums of Cu 510.55 nm and Fe 510.75 nm as the analysis spectrum and comparison spectrum, indicate the positive relationship between the content of copper and the intensity ratio of the analysis and comparison of spectrum.

对3种不同Cu元素含量的铝合金标准样品进行数字化分析测定，探索选用Cu 510.55nm谱线和Fe 510.75nm谱线分别作为分析谱线和比较谱线进行定量测定的方法，数据显示分析谱线和比较谱线的强度比值与Cu元素含量呈正比关系。

The digital analysis of the six standard samples of the Al-based alloy with different content of Cd, and the probe into the quantitative analysis that employs the spectrums of Cd 508.5 nm as the analysis spectrum, Cu510. 55 nm and Fe510.75 nm as comparison spectrum separately, indicate the positive relationship between the content of cadmium and the intensity ratio of the analysis and comparison of spectrum.

对6种不同Cd元素含量的铝合金标准样品进行了数字化分析测定，探索了选用Cd 508.58nm谱线作为分析谱线，分别选用Cu510.55nm和Fe510.75nm谱线作为比较谱线进行定量测定的方法，数据显示分析谱线和比较谱线的强度比值与Cd元素含量成正比关系。

A new method for determination of diffusion coefficient with diaphragm-cell has been suggested, by which the differential diffusion coefficient can be directly determined and a tentative experiment has been done.

提出了膜池测定液相扩散系数的新方法。这一新方法能够直接测定溶液的微分扩散系数，并采用标准物系对上述方法进行了初步的实验验证。

The content of CrO〓 and Cr〓 in electroplate waste liquid was determined successfully with this method.

经绘制标准曲线确定Cr、Cr的线性范围分别为0.5～35μg/mL和0.5～15μg/mL，迁移时间重现性的RSD均为0.9％(n＝7)，峰面积的RSD分别为3.1％和2.5％(n＝7)，测定的检测限分别为0.05μg/mL和0.04μg/mL，并将该方法用于电镀废液中铬离子的测定。

Experiments were conducted with an autonomous fiber optical chemical pCO-2 sensor and an infrared CO2 analyzer equipped with a shower head equilibrator.

其中，表层海水pCO2通过国际通用的水气平衡器-非分散红外检测器测定系统和自主研发的原位光纤化学CO2传感器获得，其它碳酸盐系统和生物地球化学参数采用国际标准方法测定。

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。