Multi-Sample Blood Collection Needles (Pen Needles)
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Features
- How it works: Gel& Clot Activator tubes contain silica to promote specimen coagulation, together with separating gel that forms a barrier between the clot and serum upon centrifugation.
- Additive filling: The clot activator is sprayed on the inner wall of the tube and then followed by drying. It will help the blood and additive to mix thoroughly.
- Operation notice: Invert the tube 6-8 times immediately after blood collection.
- Minium time before centrifugation:30 minutes after collection.
- Centrifugation instructions:1700g-2000g for 10minutes at 25℃ room temperature.
Product Specifications
| Product | Cap Color | Material | Size | Volume |
| SST tube Gel &Clot Activator tube | Yellow | PET/GLASS | 13x75mm | 2ml,3ml,3.5ml,4ml |
| PET/GLASS | 13x100mm | 5ml,6ml | ||
| PET/GLASS | 16x100mm | 7ml,8ml,8.5ml |
Application
Gel & Clot activator tube is used for routine biochemical, immunological, drug testing, tumor markers and other serum immunological tests, therapeutic drug monitoring.
- Biochemical tests: glucose, electrolytes, liver & kidney function
- Immunological tests: antibodies, hormones (TSH, cortisol, etc.)
- Serological tests: infectious disease detection (HIV, HAV, HBV)
Why this product is chosen?
Gel & clot activator tubes contain clot activator and separating gel. Blood clots rapidly after sampling and gentle inversion. During centrifugation, the separating gel migrates under centrifugal force and forms a stable barrier between the clot and serum.
- It effectively isolates blood cells from serum, prevents continuous release of intracellular substances and minimizes interference to test results.
- Excellent serum separation facilitates long-term specimen storage and transportation.
Frequently Asked Questions (FAQ)
- Immediately invert the tube gently 6–8 times after blood collection to fully mix blood with additives.
- Place the tube upright and allow sufficient clotting time (minimum 30 minutes recommended) until complete coagulation.
- Centrifuge the sample after clot formation in accordance with laboratory standard protocols.
- After centrifugation, the separating gel forms a barrier between the clot and serum. The supernatant serum can be used for testing.
Notes:
Avoid vigorous shaking to prevent hemolysis. Ensure complete coagulation before centrifugation, otherwise fibrin strands are likely to occur.
- Plain tube: No additives; blood clots slowly. Best for tests sensitive to additives like TDM.
- Clot activator tube: with clot activator. No separating barrier; test samples quickly without long storage.
- Gel & clot activator tube: with gel and clot activator, Gel isolates serum from clot after centrifugation, suitable for transport and prolonged sample storage.
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