结果表明,对不同氘丰度的气体样品,单次测定的相对标准偏差好于0 2 % ,氘丰度测量值在0 2 %的误差范围内是可信的。
The results indicate:relative standard deviations are better than 0.2% for gas samples of different deuterium abundance. Measure value is believable in the error range of 0.2%.
结果表明,对于大多数的牛乳样品,当其稀释倍率在6.2至7.4范围内时,测量标准偏差达到最小值0.027,满足蛋白质检测国家标准。
The result shows that measurement standard error reaches minimum 0.027 for most milk sample and satisfies the national criterion of protein detection when dilution ratio ranges from 6.2 to 7.4.
样品测量:单样品自动测量,测量次数2、3、5、10、50次任意设定,测量结束给出平均值和标准偏差。
Measurement of sample: single sample automatic measuring, measuring the number of times 2, 3, 5, 10, 50 set, measured at the end gives the average value and standard deviation.
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 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.
自动进样器重复性的测试,一般取同一样品溶液至少重复进样10次,其相对标准偏差不应大于1%。
During automatic sampler repeatability test, a homogenous solution shall be at least sampled and injected for 10 times, and the RSD of results shall not be greater than 1%.
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 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%.
注:表中不确定度以定值标准偏差和样品的不均匀方差表示。
Note: Uncertainty in table is showed by the square minus of the standard deviation from laboratory average data and sample unhomogeneity.
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.
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 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.
本法测定锰矿标样(冶金部标准样品505)中二氧化硅含量,其测定结果的相对标准偏差RSD为1.08%,测定平均值为33.93%(标样推荐值为33.58%)。
The standard sample(metallurgy department standard sample 505)was measured by this method with the RSD of 1.08% and the mean content value of 33.93%(recommendation value of standard sample is 33.58%).
测量误差的主要来源是样品校正曲线拟合误差、样品测定重复性标准偏差。
The main sources of uncertainty come from non-linear calibration models and pre-processing step of samples.
测量误差的主要来源是样品校正曲线拟合误差、样品测定重复性标准偏差。
The main sources of uncertainty come from non-linear calibration models and pre-processing step of samples.
应用推荐