Gel&Clot Activator Tube, 13X100MM: 1.Gel and clot activator tube is used for blood serum biochemistry, immunnology and drug testing, etc. There uniformly sprays the coagulant on the surface inside the tube, which will greatly shorten the clotting time. 2.As the imported separation gel is pure substance, very stable in physicochemical property,it can well stand high-temperature so that the gel will maintain a stable status during the storage and transportation process. 3.The gel will get solidified after centrifugation and co,pletely separate serum from fibrin cells just like a barrier, which effectively prevents the substance exchange between blood serum and cells. Serum collection rate is improved and high-quality serum will be obtained, thus it comes to more authentic testing result.