Sodium citrate (1:9) was used to collect blood vessels for the examination of coagulation mechanism (PT, APTT, coagulation factors) in clinical medical examination.
The concentration of sodium citrate was 109 mmol / L, and the accurate ratio of blood and anticoagulant was 9:1.
The inner tube of the double-layer plastic tube is made of PP (polypropylene), and the outer tube is made of pet, which ensures the long-term stability of the vacuum within the shelf life. The blood collection vessel made of pet and PP can withstand the relative centrifugal force of 2500-3000g to obtain platelet free plasma (PFP)
