relative standard deviation

Results: The detection limit is 4.5 × 10-4 μ g and the relative standard deviation for replicate injection is 1.7%.

结果：该方法双氯芬酸钠的检测限为4.5×10-4μg；进样的精密度RSD为1.7%。

Utilizing the Relative Standard Deviation ( R.S.D.) to analysis the stability of EEMs of the same phytoplankton, and the Analysis of Variance ( ANOVA) to analysis the difference of the EEMs of different phytoplankton.

取得的成果如下：1.以相对标准偏差（R.S.D）对同种浮游植物的荧光光谱的稳定性进行分析，方差分析对不同浮游植物的荧光光谱进行分析。

Boron isotope abundance of ( CH3) 2O · BF3 complex was measured under the same instrument conditions when 10B isotope was concentrated, with the relative standard deviation of 1.095%.

在同样的仪器条件下测定了硼同位素浓缩过程中样品三氟化硼甲醚络合物中的硼同位素丰度比，测定结果的相对标准偏差为1.095%。

Results The correction factor was 0.8551 and relative standard deviation ( RSD ) was less than 3.5 %.

结果校正因子为 0.8551,本方法相对标准偏差小于3.5%,精密度、灵敏度较高.

The ave rage recovery was 97.2 % with relative standard deviation of 3.4 %.

平均加样回收率97.2%,RSD为3.4%.

The correlation coefficient for the thebaine was greater than 0.999 2. The average rate of recovery for the reference substance was 100.08% and the relative standard deviation was 0.48%.

样品中蒂巴因的平均回收率为100.08%，RSD为0.48%。

The method has been applied to the determination of tellurium in lead tellurium residue sample with recoveries in the range of 98.0%~ 102.3% and relative standard deviation in the range of 0.4%~ 0.8%.

ml-1。本方法用于铅碲渣中碲的测定，回收率为98.0%~102.3%，相对标准偏差为0.4%~0.8%。

The results showed that the content of vitamin A, D and E in the boneless seawater fish was 0.80, 0.17 and 4.14 mg/ kg, respectively, and relative standard deviation was between 3.7%~ 5.0%.

实验结果表明：无骨海鱼中维生素A、D和E的质量分数分别为0.80、0.17、4.14mg kg，相对标准偏差为3.7%～5.0%。

The relative standard deviation is less than 1.9 % . The recoveries are better than 97 %.

测得结果重现性好,相对标准偏差标准回收率>97%.

The sulfate ion was determined by Ion Chromatography. The relative standard deviation is 1 58%. The recovery is from 90 5% to 98 2%.

方法用于各种水样中硫化物的测定，相对标准偏差为1.58%，回收率在90.5%到98.2%之间。

The method has been applied to the determination of chromium in water and food samples, the relative standard deviation is less than 4.6%, and the recovery is 93.5~ 104.4%. The results are satisfactory.

将此体系用于自来水、泉水、食品及粮食作物中铬的测定，相对标准偏差小于4.6%，加标回收率在93.5～104%范围内，取得了令人满意的结果。

The observed recovery is 96& 112% by standard addition procedure and the average relative deviation of eigh synthetic samples is 7.7%.

标准加入法的回收率达96&112%，一个合成水样八次平行测定结果的相对标准偏差为7.7%。

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 Cr and Co are respectively 8.4% and 9.0% in 11 times of detection of the refrence samples.

经11组白菜参考样测定验证，铬和钴的相对偏差分别为8.4%和9.0%；

The relative standard deviation of the method wus better thane ± 5%.

方法的相对标偏＜±5%。

The relative standard deviation should be no greater than 2.0 %.

其相对标准偏差也应不大于2.0%.

The method is simple and rapid. The relative standard deviation is 0.60 %-0.67 % . The rate is 100 %-103 % .

本法简便、快速,具有良好的准确度和精密度,相对标准偏差为0.60%—0.67%, 回收率为 100%—103%.