This kit enables students to identify quantitatively naturally occurring antibodies (immunoglobulin A) in their saliva. These antibodies are the important first line of defence against infections of all kinds and are responsible for attacking pathogens in 'external' body environments. The principle of immunodiffusion - diffusion of saliva through an agar gel containing antiserum is employed to detect the antibody.Please Note - Our Antibodies in Saliva Kit is only suitable for use in educationSuitable for 'A' level and college students.The Antibodies in Saliva Kit contains:Sodium chloride20 x Petri dishesFilter papersBuffered agar mediumAnti-IgA serumCoomassie stainMicrodroppersSample boatFull instructionsThe kit contains sufficient materials for 20 students/student groups.The buffered agar medium (B8A02100) & Anti-IgA serum (B8A02136) are also available to order separately.The following additional materials or equipment are required:Water Bath (B8R06048)Cork Borer (B8A83550)Plastic Container (B8A83732)Disposable Dropper / Syringe (B8B93215)Graph Paper (B8R04348)