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Table 5 Statistical data of precision for CAA

From: Quantitative determination of cyanoacetic acid content in teriflunomide drug substance by ion chromatography using conductivity detector

System precision Method precision Intermediate precision
Injection No CAA area CAA (μg/g) CAA (μg/g)
1 0.1993 502 484
2 0.1999 497 488
3 0.1977 504 478
4 0.1986 502 494
5 0.1985 502 485
6 0.1983 509 501
Mean 0.1987 503 488
SD 0.001 3.88 8.12
%RSD 0.5 0.8 1.7