Technical data sheet
Samples are digested in a buffered lipase solution. Vitamin K is extracted using isooctane and concentrated. Extracts are run on an HPLC with fluorescence detection. An internal standard is used to compensate for any extraction inefficiencies and matrix interferences.
Food and dairy products, fruits and vegetables, supplements, drinks, and drink mixes
Limit of quantitation
0.2 – 1.9 mcg/100g (Sample Dependent)
Incubator, Evaporator, HPLC with Fluorescence Detection
Sample size requirements
The method measures Vitamin K1, K2 (MK-4), and K2 (MK-7). Please provide estimates, if available.