Interlaboratory comparisons of quality control materials (IMAGE)
Caption
(A) Comparison of measured values for quality control materials at the 10% level before and after optimization. A-1 to B-2 represent individual participating laboratories; (B) Comparison of measured values for quality control materials at the 15% level before and after optimization. A-1 to B-2 represent individual participating laboratories; (C) Comparison of measured values for quality control materials at the 35% level via two different calibration curves. A-1 to B-4 represent individual participating laboratories. The results obtained via the normal-level calibration curve and the low-level calibration curve are shown for comparison. The data are presented as the means with coefficients of variation, and recovery is expressed as a percentage (%).
ns: no statistically significant difference; *: P<0.05. P<0.05 was considered to indicate a statistically significant difference.
Credit
Yu Liu, Ying Song,Yu-hua Wang, Zhen-ping Chen, Qiang Li, Run-hui Wu, Jing Sun, Lei Zhang, Xiao-bo Hu, Ren-chi Yang, Xue-feng Wang, Jing Dai.
Usage Restrictions
Credit must be given to the creator.
License
CC BY