Table 1. Analysis of certified reference material

Sample	Content2)		Recovery (%)
	Reference value	Analysis value
SRM (3235)1)	3.70±0.0043)	3.73±0.083	100.81

Standard reference material (3235, NIST).
Concentration of PK (phylloquinone) was expressed as μg/100 g sample.
All values are mean±SD (n=3).