Affinity’s Factor X Deficient Plasma is a normal human plasma where Factor X Deficient Plasma 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 X Deficient Plasma for Research Use Only is flash frozen and available in 1ml vials or bulk formats up to 1000ml. Our Factor X Deficient Plasma (in vitro Diagnostic – in Canada and most EU countries) are available in 5x1m or 25x1ml sizes.