The precision of an analytical procedure is usually expressed as the standard deviation or relative standard deviation (coefficient of variation) of a series of measurements.
分析规程的精密度通常以一系列测量数值的标准差或相对标准差(变异系数)来表示。
The relative standard deviation of the measurements could be controlled to be less than 1 % for major components and less than 10% for minor components in the solid samples.
对于样品中的主要组分，测定的相对标准偏差可控制在1%以内，对微量组分可控制在10%以内。
The recovery of sulfur was 95 ~ 102% and relative standard deviation 3 ~ 5%.
平行测定结果的相对标准偏差为3 ~ 5%，加标回收率为95 ~ 102%。
Experiment results shows the rate of recovery is 100%, the standard deviation is 2.04, the relative standard deviation is 2.04%.
应用该法测定腐肥中的硼测定回收率为100%，标准偏差为2.04，相对标准偏差为2.04%。
The interaction distance relates to the standard deviation, the initial relative phases, the pulse width and the relative amplitude.
相互作用距离与初始间隔、初始相对相位、脉宽和初始相对振幅有关。
The sampling constants can be estimated by means of sampling relative standard deviation or some relevant chemical and physical informations.
首先对被分析物料实验测定取样标准偏差，或进行一些有关的化学测试和物理测试，以确定取样常数。
Test result in many times indicated that the detection value was all in the control limit. The relative standard deviation was 0 . 7% with high accuracy .
通过对标准样品的多次测定，测定值均在其保证值范围内，相对标准差为0 7%，准确度高，精密度好。
Repeated measurement of chlorhexidine content in 2 kinds of compound disinfectants showed that the relative standard deviation was 3.2%.
对两种复方消毒剂中氯己定含量进行重复测定，相对标准偏差为3.2%。
Also it is found that the standard deviation of vertical velocity is relative to the refractive -index structure constant well.
同时分析了垂直风速标准差，发现其有明显的日变化特征，并且与大气折射率结构常数有很好的相关性。
Standard deviation were all unpredicted and the absolute relative errors were less than 6.6%.
对标准差的模拟结果偏低，相对误差的绝对值小于6.6%；
Effects of acidity, concn. of potassium iodide and dosage of reducing agent on determination are investigated. It is simple and rapid with relative standard deviation 1.08%.
研究了酸度、碘化钾浓度、还原剂用量对测定影响。测定的相对标准偏差为1.08%，方法简单、快速。
Relative standard deviation of this method is below 3 %.
方法的相对标准差低于3%。
The relative standard deviation of the determined result is less than 5 %.
测得结果的相对标准偏差均小于5%。
A method for evaluation of uncertainty was established with standard deviation of relative error.
建立了一种以相对误差的标准偏差统计不确定度的评估方法。
In this paper, statistical tests used to verify the robustness of the model, and the relative error and relative standard deviation were used as its evaluation criteria.
本文采用统计试验的方法验证该模型的稳健性，并将相对误差和相对均方差作为其评价标准。
The results show that the data determined by this method have good precision, relative standard deviation is 1.52% and recovery is over 98%.
结果表明，在此条件下测定的数据具有良好的精密度，相对标准偏差为1.52%，回收率在98%以上。
There had no obvious difference between these two methods, the relative standard deviation was less than 10%, sample recovery rate was 86~119%.
两种方法测定不同类型水中的总铬结果无明显差异，相对偏差均小于10%， 回收率为86～119%。
There is no significant difference between the result of the method and that of micro-Kjeldahl′s method according tot test. The relative standard deviation is 3.1%.
经t检验证明，该方法的测定结果与微量凯氏定氮法无显著差异，测定结果的相对标准偏差为3.1%。
The results indicated that the relative standard deviation is less than 4% and the recovery is in the range of 94. 5%-101. 8% by this method.
结果表明，用本法对实际茶叶样品测定时，相对标准偏差小于4 ％，回收率为94．5％-101．8％。测定茶叶标准样品时结果与标准值相符。
The relative standard deviation is less than 1.9%. The recoveries are better than 97%.
测得结果重现性好，相对标准偏差<1.9%，标准回收率>97%。
The relative standard deviation of the reproducibility for this method is 1.73%, which indicated that reproducibility is good.
此法的重现性试验的相对标准偏差为1。73%，表明重现性较好。
This method was simple, rapid and accurate. The relative standard deviation and recovery were 4.0% and 99.5% respectively for vinyl chloride, and 4.6% and (99.8%) respectively for acetylene.
该方法简便、快速、准确，测定的氯乙烯相对标准偏差、回收率分别为4.0%、99.5%，乙炔相对标准偏差、回收率分别为4.6%、99.8%。
The quantitative determination of 70% bismuth in silicon-bismuth samples were completed by line width method. The relative error is less than 7.15%, the relative standard deviation is 5.85%.
用谱线宽度方法定量检测了硅铋样品中含量为70%的铋，相对误差小于7.15%，相对标准偏差为5.85%。
The results consists of atomic absorption spectrometry. Standard deviation 0.04, relative standard deviation 1.45%.
该方法的测定结果与原子吸收光谱法基本一致，标准偏差为0 04，相对标准偏差为1 45%。
The precision of this method is better than the zone sampling method. The relative standard deviation (RSD) is less than 3 %.
方法的精密度优于区域采样法，相对标准偏差小于3%。
Relative standard deviation (RSD) of the EDTA titrimetric method is 2.82%, and the analytical results are basically consistent with those obtained according to the DHF83B methodology.
EDTA滴定法分析结果的相对标准偏差rsd为2.82%，与DHF83 - B多元素快速分析仪法比较，其结果基本一致。
The method is convenient and the results show good precision and accuracy, the relative standard deviation was 2 72% and the recovery rate was 103 87%.
测定方法简便，具有很好的准确度与精密度，平均相对标准偏差为2 72 % ，平均回收率为10 3 87%。
The accuracy and precision of this method were studied. The results are consistent with the certified values and have relative standard deviation of less than 2%.
考察分析方法的精密度和准确度，元素的测定结果与认定值一致，相对标准偏差小于2%。
The detection limits and relative standard deviation of the data are dependent upon the element and sample matrix.
检测限和相关数据的标准偏差取决于元素和样品基体。
The detection limits and relative standard deviation of the data are dependent upon the element and sample matrix.
检测限和相关数据的标准偏差取决于元素和样品基体。
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