Total Antioxidant Capacity of Serum Determined Using the Potassium Permanganate Agar Method Based on Serum Diffusion in Agar

Table 1

Average area of serum diffusion, standard deviation of the area of serum diffusion, and coefficient of variation of the area of serum diffusion at different levels (cm²).

Sample		SD	CV (%)
High level
Within-run	1.94	0.06	2.90
Between-run	1.94	0.12	6.30
Between-day	1.94	0.00	—
Low level
Within-run	1.52	0.05	3.00
Between-run	1.52	0.08	5.10
Between-day	1.52	0.00	—

According to the EP5-A2 document, set , , and to 0 if negative. : average area of serum diffusion, SD: standard deviation of the area of serum diffusion, and CV: coefficient of variation of the area of serum diffusion.