Table 3 Accuracy of immunoaffinity-HPLC/DAD assay for vitamin B₁₂

Sample	Vitamin B12 content (μg/100 g)		Recovery3) (%)
	Reference value1)	Analysis value2)
	BCR® 487	112.00±9.00		111.51±11.51	99.6
SRM® 1546a	0.55±0.16	0.52±0.09	95.0

Reference value indicates the vitamin B12 contents of BCR^® 487 and SRM^® 1546a provided by EC and NIST, respectively, as the certificate value.
Analysis value indicates the vitamin B₁₂ contents obtained by immunoaffinity- HPLC/DAD assay for vitamin B12 in this study.
Recovery (%) was calculated by 100 (analytical value/reference value).