Vacuum blood collection tubes with gel and clot activator allow to
obtain more serum than regular tubes due to the cleaner separation
of serum from the clot.
Range of application: clinical chemistry, immunology, protein
electrophoresis, serology, microbiology, toxicology.
Gel is a special material designed to form a resistant barrier
between the cellular components of blood and serum during
centrifugation.
The density of the gel was chosen so that it is roughly between the
density of the blood cells and the density of the serum, which
causes it to move upward during centrifugation, settling above the
red cells and in between the blood cells. The gel then hardens and
forms a barrier between the blood cells and serum.
A certain amount of Silicone dioxide was added to the gel-barrier
tube to ensure complete blood clotting within 30 minutes.
Specimen: serum.
Clotting time: 10 to 30 minutes.
Centrifugation conditions: 1500-2000 g for 10 minutes.
Once the specimen is collected, gently invert the gel-barrier tube
5-6 times to mix adequately.
