Table 2. Accuracy of vitamin B₆ and B₁₂ analyses

Samples	Analytes	Reference values3) (μg/100 g)	Analytical values4) (μg/100 g)	Recovery (%)
SRM 32901)	Pyridoxine	2,738.0±24.0	2,742.9±9.2	100.2±0.3
	Pyridoxal	87.7±2.5	86.7±0.6	98.9±0.7
	Pyridoxamine	73.7±5.0	73.6±1.3	99.9±1.8
BCR-4872)	Cyanocobalamin	112.0±9.0	105.6±4.7	94.3±4.2

SRM, standard reference material; SRM 3290, dry cat food.
CRM, certified reference material; BCR-487, pig liver.
The true value for the contents of corresponding analytes in SRM provided by NIST.
The analytical value obtained in this study.