No Additive Plain Blood Collection Tube

The Plain Tube, also known as the no-additive vacuum blood collection tube, is a fundamental and essential laboratory consumable widely used in clinical blood testing.

Designed without any anticoagulants, clot activators, or separating gel inside, this tube provides a completely pure and interference-free blood sample environment, allowing blood to clot naturally and making it ideal for obtaining high-quality serum samples. 

After blood collection,natural coagulation and centrifugation, high-purity serum can be successfully separated without foreign substance interference, fibrin residue, or component distortion.

This unique advantage makes the plain tube highly suitable for routine serum biochemistry, immunology, serology, hormone detection, and various microbial and biochemical tests that require zero additive contamination.

Available in multiple specifications including 3ml, 4ml, 5ml and 10ml, the tube can meet diverse sampling volume requirements for pediatric, adult, and large-scale laboratory screening scenarios.

With reliable sealing performance, stable sample preservation effect, and long shelf life, the plain blood collection tube has become a universal and indispensable consumable for hospitals, clinical laboratories, physical examination centers and scientific research institutions worldwide.

Key Features

  •No additives or anticoagulants, allowing natural blood clotting
  • Suitable for obtaining high-quality serum samples
  • Made from premium medical-grade PET or glass materials
  • Excellent vacuum retention for accurate blood collection
  • High transparency for easy sample observation
  • Leak-proof cap design for safe transportation and storage
  •Sterile, non-toxic, under strict quality control standards
  • Available in multiple sizes and blood draw capacities