Golden Vac plasma blood collection tube promises to provide non-polluting and non-differential original blood specimen for medical test. After centrifugation, plasma can be separated from blood cells effectively. Plasma tube includes 5 kinds of tubes: Clotting Tube with blue cap, Heparin Tube and Gel & Heparin Tube with green cap, Compound of Sodium Fluoride and Anticoagulant Tube with grey cap, Gel& EDTA Tube with lavender cap. Coagulation Tube Coagulation Tube aims to obtain plasma specimen for coagulation function test, it contains buffered Sodium Citrate solution with the concentration of 3.2% ï¼?0.109 mol/Lï¼?. The mixing ratio of blood to Sodium Citrate is 9:1. This anticoagulant is sustained and stable, it strictly control the microbial limit, making sure the APTT test under the excellent condition. Item GD018SC , Specification Blue cap, Coagulation, 3.2% Sodium citrate 13*75mm, 1.8ml Item GD027SC , Specification Blue cap, Coagulation, 3.2% Sodium citrate 13*75mm, 2.7ml Item GD036SC , Specification Blue cap, Coagulation, 3.2% Sodium citrate 13*75mm, 3.6ml Item GD045SC , Specification Blue cap, Coagulation, 3.2% Sodium citrate 13*75mm, 4.5ml Item GD018SCD , Specification Blue cap, Coagulation, 3.2% Double wall 13*75mm, 1.8ml Item GD027SCD , Specification Blue cap, Coagulation, 3.2% Double wall 13*75mm, 2.7ml Coagulation Tube ( Glass Only) Item GD018SC-F , Specification Blue cap, Glass tube, Coagulation, 10.25*64mm ( flat bottom) , 1.8ml Item GD027SC-F , Specification Blue cap, Glass tube, Coagulation, 10.25*64mm ( flat bottom) , 2.7ml