(b) HTK1 calibrators were used to evaluate the stability and accuracy in four batches of hTK1-IgY-rmAb#5 using the semiautomatic ECL dot blot assay with the BSA platform and the automatic chemiluminescence analyser with the sandwich-BSA platform. Pearson correlation score (r > 99.9, data not shown)

hTK1 calibrator (pM)	Mean ± SD (OD value)	CV%
ECL dot blot
2.2	11,029 ± 860.2	7.80
6.6	26,636 ± 2,087.9	7.92
20	99,985 ± 4,950.3	4.95
Automatic chemiluminescence
1	753,128 ± 18,828.2	2.50
2	1,481,435 ± 16,295.8	1.10
5	3,638,642 ± 40,025.1	1.10
10	7,420,457 ± 51,943.2	0.70
20	14,854,175 ± 65,358.4	0.44