Table 3.

The linear regression equations at pH 3.6 for HSA assay and LOD of HSA

Series	PS, μmol/l	Linear scope of HSA, mg/l	Regression equation	R*	σ†	LOD‡, mg/l
1	1.5	0–3.0	ΔAr = 0.0491CM0 + 0.011	0.9867	0.0060	0.4
2	3.0	0–7.0	ΔAr = 0.0354CM0 + 0.005	0.9980	0.0025	0.2
3	4.5	0–10.0	ΔAr = 0.0237CM0 - 0.004	0.9969	0.0016	0.2

^*Linear correlation coefficient.

^†Standard deviation of 10 replicated reagent blanks.

^‡LOD = 3σ/p (p-slope of line).