精密度

40 Balances and measuring equipment of an appropriate range and precision should be available for production and control operations.

衡器和测量设备的范围和精密度应满足生产和控制的要求。

Its mechanical precision and efficiency to meet international advanced level.

其机械精密度和工作效率达到国际先进水平。

Potassium mercuric tetrachloride absorption accuracy and precision is better than formaldehyde absorption.

四氯汞钾吸收法的准确度以及精密度优于甲醛吸收法。

Significant Spearman rank correlations were found between the results obtained by Luminex assay and by chemiluminescence immunoassay or time-resolved fluorescence immunoassay. Only 1 microliter of serum and 3 hours were needed for Luminex assay. With the advantages of unique capability of multiplexing and high-throughput, good reproducibility, increased detection range and sensitivity, Luminex assay would have a great potential in clinical application.

本研究应用液相芯片技术利用双抗体夹心免疫分析原理同时检测了人血清中的癌胚抗原、甲胎蛋白和乙肝表面抗原，评价了该方法的线性范围、最低检测限、精密度、灵敏度、特异度、准确度等指标，并对检测结果与化学发光免疫分析法（chemiluminescence immunoassay，CLIA）和时间分辨荧光免疫分析法（time-resolved fluorescence immunoassay，TRFIA）进行了相关性分析。

Poten-tiometer being used, the accuracyof analysis by FISE has been comeup to 0.1 millivolt.

本文报导采用UJ—25型直流电位差计，使选择性电极测氟的精密度提高到0.1mv。

A new method was studied for the determination of Nickel in Lead ingot in nitre acid after the main part were separated by Lead Sulphate.

方法操作简单，精密度、准确度均可满足分析要求，适用于铅锭中0 0001%～0 005%镍量的测定。

Make use of HPLC, can availably classify true or false D-calcium pantothenate, the D-calcium pantothenate sample diagram and standard diagram have similar diagram in same reservation time, the content meets provision;The false D is mainly depend on adding calcium inorganic salt, urea and glucose etc, to make specific optical rotation, calcium content, nitrogen content to attain a nation standard, but these material in the same reserve time have never absorbed diagram to make peak area very small, the content of external standard be low.

本文以市售D-泛酸钙为样品(山东新发药业有限公司生产)，对所建立的检测方法进行了验证，通过精密度、准确度和标准曲线等验证项目的实验，结果表明，本文所建立的D-泛酸钙的高效液相色谱检测方法可以准确地检测产品的含量；利用液相色谱图谱，可以有效地区分真假D-泛酸钙，D-泛酸钙样品图谱与标准品图谱在相同的保留时间处，有类似谱图，含量符合规定；搀假的泛酸钙主要靠添加无机钙盐、尿素和葡萄糖等使比旋度、钙含量、氮含量达到国家标准，但这些物质在此处无谱图造成峰面积很小，外标含量低。

Therefore, experimental water should be strictly required to meet the need in order to improve the precision and accuracy of permanganate index determination.

因此在高锰酸盐指数的测定分析中，一定要严格控制实验用水使其符合要求，以提高测定的准确度和精密度。

The accuracy of phenacetin and paracetamol was 87.1%-101.5% and 89.5%-107.3%, the precision was 0.85%-7.83% and 2.53%-8.74%, respectively. The extraction recovery ranged from 58.25% to 69.85%, and matrix effect was 99.0% to 103.6%.

非那西丁和对乙酰氨基酚的准确度分别为87.1%~101.5%和89.5%~107.3%，精密度分别为0.85%~7.83%和2.53%~8.74%，提取回收率为53.0%~76.0%，基质效应为92.0%~106.3%，均符合生物样本分析方法的有关要求。

With chlorobenzene used as the solvent,phenazine as the internal standard,the content of anthracene in crude anthracene is determined by the internal standard method.

结果表明，粗蒽中各组分能很好地分离，并定性出11个组分。该法具有简便、快速、准确、操作简单等特点。所测定的结果有良好的准确度和精密度，样品的回收率为98.43%~100.73%，相对标准偏差为

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。