Gel&Clot Activator Tube(Yellow Tops)

Gel & Clot Activator Blood Collection Tube (Serum Separator Tube – SST)

Efficient Serum Separation for Accurate Biochemistry Testing

Gel & Clot Activator Tubes, commonly known as Serum Separator Tubes (SST), are designed for the collection of blood samples used in clinical chemistry, immunology, serology, and other serum-based diagnostic tests. These tubes contain a clot activator to accelerate coagulation and a polymer gel that forms a stable barrier between serum and blood cells after centrifugation.

The clot activator promotes rapid clot formation, typically within 20–30 minutes, while the separation gel moves during centrifugation to create a physical barrier. This barrier prevents contamination of serum by cellular components, ensuring sample purity and stability for accurate laboratory analysis.

Key Features & Benefits

• Clot Activator Coating
  Promotes fast and complete clot formation, reducing turnaround time.

• Separation Gel Barrier
  Forms a stable barrier after centrifugation to maintain serum integrity.

• High Serum Yield
  Optimized additive-to-blood ratio ensures maximum serum recovery.

• Vacuum-Sealed for Accurate Draw Volume
  Ensures precise blood collection and correct additive proportion.

• Leak-Proof, Color-Coded Cap
  Typically yellow or gold for easy identification in clinical settings.

• Clear Labeling Area
  Suitable for barcode labeling and patient identification.

• Analyzer Compatibility
  Designed for use with automated chemistry and immunoassay analyzers.

Technical Specifications

• Additive: Clot activator + separation gel

• Cap Color: Yellow / Gold

• Tube Material: Medical-grade PET or glass

• Available Volumes: 4 ml

• Clotting Time: Approximately 20–30 minutes

• Centrifugation Requirement: 3,000–4,000 rpm for 10 minutes (standard recommendation)

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