标准偏差

对pmol/dm~3级汞的海水，测定相对标准偏差<10%。

For measuring seawater with p mol / dm3 mercury the relative standard deviation was less than 10 % .

该方法巧妙运用MATLAB统计学工具箱中的现有函数，并借助可决系数和预测相对标准偏差两个定量判别指标来选择预测模型，从而能更有效地对电力负荷进行中期预测。

Using the coefficient of determination and the relative standard deviation as standard , this method can figure out a more effective forecasting model with MATLAB Statistics Toolbox .

相对标准偏差（RSD）为0.81%～2.23%，操作简单，快速，方法准确可靠，满足测定需求。

This method has advantages of simple , quick , accurate and reliable .

相对标准偏差小于1.1%，分析的加样回收率为98.9%。测定了青蒿素在超临界CO2中的溶解度。建立了一套流动法测定固体溶质在超临界CO2中溶解度的实验装置。

The recovery is 98.9 % . A flow-type apparatus has been built for solubility determination of solid in supercritical CO2 .

ΔI值和ΔTb值的标准偏差分别为0.8指数单位和.15℃。

The standard deviations of △ I and △ Tb were equal to 0,8 index unit and 0.15 ℃ respectively .

实测硅灰石中锰含量，相对标准偏差（RSD）为1.5%；

Mn in silica was actually determined , relative deviation ( RSD ) is 1.5 % .

HPLC检测样品纯度为99.24%，相对标准偏差（RSD）为0.14%；

The purity is 99.24 % with Relative Standard Deviation ( RSD ) of 0.14 % , tested from the way of HPLC .

该方法的相对标准偏差（RSD）<0.3%，精密度和准确度良好，适合于生产中间控制分析。

The relative standard deviation of the method is < 0.3 % , and its precision and accuracy are satisfactory .

当PAM含量为1PPm时，标准偏差不大于1.2%用本测定法研究了阴离子PAM作为干强剂的使用特性。

The average standard deviation for 1 ppm pAM is below 1.2 % .

采用褶合曲线法，不经分离，同时测定了复方甲苯咪唑片中两组分的含量，平均回收率和相对标准偏差（RSD）分别为：甲苯咪唑100.7%，1.03%；

The convolution curve method was applied for the simultaneous determination of two components in compound mebendazole tablets without prior separation .

由本方法测定所得平均加样收率为97.96%，相对标准偏差（RSD）为2.73%。

Determined by the average sample yield was obtained 97.96 % , relative standard deviation ( RSD ) was 2.73 % .

该方法的精密度为辛硫磷乳油中辛硫磷的相对标准偏差4.3%，神光乳油中辛硫磷的RSD是3.6%；

The relative standard deviation is 4.3 % of phoxim in phoxim emulsifiable concentrate , 3.6 % of Shenguang emulsifiable concentrate .

相对标准偏差为4.5%（10μg/MLDNA，6次连续检测）.鉴于电化学技术的优点，这一方法可能在生物化学和分子生物学领域发挥作用。

The relative standard deviation was 4.5 % for 6 successive determinations of DNA at 10 μ g / mL , this method may be of considerable value in both the biochemical and molecular biological fields .

结果表明：大豆黄素的线性范围为0.0450~0.3150μg，加标回收率为99.05%，相对标准偏差（RSD）为1.31%；

The results show the linear range of Daidzein is ( 0.0450 ) ~ 0.3150 μ g , the recovery is 99.05 % , RSD is 1.31 % .

甜蜜素在0.0139～0.973μg范围内线性相关系数为0.9996，相对标准偏差为1.41%，回收率在98.6%～101.6%之间。

To cyclamate the calibration curve was linear in the range of 0.0139 ~ 0.973 μ g with r2 as 0.9996 and RSD as 1.41 % and recovery rate between 98.6 % ~ 101.6 % .

Cl、S的相对标准偏差分别为0.22%和0.36%，最大绝对误差分别为0.43%和0.80%。

The relative standard deviation of chlorine and sulfur are 0.22 % and 0.36 % respectively , the maximal absolute deviation are 0.43 % and 0.80 % .

与传统高速离心法的对比研究表明，该方法具有较高的EPS提取效率，测定结果的相对标准偏差<3%。

It has better extracting efficiency when comparing with traditional high-speed centrifugal method , the relative standard deviation ( RSD ) is less than 3 % .

测定了大明湖水中的Cr（Ⅵ），相对标准偏差1.9%，回收率90%～114.0%。

The standard deviation of the determination of Cr (ⅳ) in Daming lake water is 3.3 × 10 ~ ( - 8 ) % . The recovery is 90.0 % ~ 114.0 % .

方法的检出限为6.0×10（－12）g，对于30ng／mL锗的测定相对标准偏差为5.0%

The detection limit for Ge is 6 . 0 × 10 ( - 12 ) g and the relative standard deviation is 5.0 % .

方法已用于赣江水、茶叶和维生素B（12）注射液中钴的测定。相对标准偏差分别为2.59%、3.91%和3.32%。

The method has been applied to the determination of cobalt in water of Ganjiang , tea leaf and injection of vitamine B_ ( 12 ) samples , the relative standard deviations are 2.59 % , 3.91 % and 3.22 % respectively .

用中和滴定法测定OH-浓度，相对标准偏差0.14%，计算出新制Ca（OH）2溶度积4.07×10-5，结果令人满意。

Hydroxide ion concentration was determined by neutralizing titration method . The RSD for OH - was 0.14 % . The solubility product of calcium hydroxide was 4.07 × 10 - 5 and the result was satisfactory .

品红亚硫酸法的回收率为98.2%～108%，相对标准偏差（RSD）为2.6%～5.8%。

The recovery rates and RSDs of sulfurous acid , magenta spectrophotometric method were 98.2 % - 108 % and 2.6 % - 5.8 % respectively .

以预测集的预测相关系数（r），预测标准偏差（RMSEP）作为模型评价指标。

The correlation coefficients ( r ) and root mean square error of prediction ( RMSEP ) were used as the model evaluation indices .

S2、S3分次剂量有波动，分次剂量标准偏差分别为11.4%±2.6%、16.6%±2.8%。

The standard deviation of fraction dose in S2 and S3 were 11.4 % ± 2.6 % and 16.6 % ± 2.8 % , respectively .

用近红外光谱法预测木材中的水分含量，相关系数为0.99，校正标准偏差SEC和预测标准偏差SEP分别是0.041和0.043；

Then the moisture contents in wood were predicted by NIR spectroscopy . The coefficient of determination is 0.99 ; and SEC and SEP are 0.041 and 0.043 respectively .

当空白样品CAP水平为1～100μg/kg时，平均回收率达71.33%～95.29%，相对标准偏差为1.73%～7.45%。

The average recovery rates were 71.33 % - 95.29 % when 1-100 μ g / kg chloramphenicol standards were spiked into the zero shrimp sample , and the RSDs were 1.73 % - 7.45 % .

相同流化数时，B类颗粒的压力波动标准偏差受床层温度变化影响较小，而D类粒子随床层温度升高压力波动标准偏差减小。

Under the same fluidization number the influence exerted by a change in bed temperature on pressure fluctuation standard deviation of B particles is insignificant , while for particles of D category the pressure fluctuation standard deviation will decrease with a rise in bed temperature .

当铵在100ml体积中5微克时，标准偏差为0.22，变动系数为4.7%。

For 5 μ g thallium with the same volume , standard deviation is 0.22 ; variational coefficient is 4.7 % .

对样品分析，铜的加标回收率为93.5%&109%，相对标准偏差RSD≤3.7%。

The analysis of practical samples resulted the recovery of copper is between 93.5 and 109 % and the relative standard deviation ( RSD ) less than 3.7 % .

另外，通过对实验数据回归得到了管外水膜传热系数计算关联式，回归相关系数R为0.98，标准偏差为7.5%。

In addition , via regression analysis of the experimental data , the correlation equation for calculating the heat transfer coefficient of the water film was obtained , its regression correlation coefficient R is 0.98 and the standard deviation is 7.5 % .