Affinity’s Factor VII Deficient Plasma is a normal human plasma where Factor VII has been removed by selective affinity immuno-adsorption. Only the highest quality citrated plasma is used as a starting material and in many cases the parent plasma is available as a control material. Plasma products are typically buffered with the addition of HEPES to 20mM final concentration. Our Factor VII Deficient Plasma for Research Use Only is flash frozen and available in 1ml vials or bulk formats up to 1000ml. Our Factor VII Deficient Plasma (in vitro Diagnostic – in Canada and most EU countries) are available in 5x1m or 25x1ml sizes.