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 precision of an analytical procedure is usually expressed as the standard deviation or relative standard deviation (coefficient of variation) of a series of measurements.
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。
The results show that the data determined by this method have good precision, relative standard deviation is 1.52% and recovery is over 98%.
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。
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 .
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