Silica particles act as the clot activator.

Blood clotting promoted with ultrasonically spray-dried. Silica particles on the interior tube wall.

Gently mix the blood collection tube by inverting 5-6 times immediately to activate clotting after blood drawing.

To obtain serum, tube should be allowed to stand for 30 minutes or until the clot is formed.

Centrifugation: ≤ 1300 g (RCF) for 10 minutes at 18-25°C.

Chemistry tests (e.g., glucose, electrolytes, liver/kidney function).

Immunology tests (e.g., antibodies, hormones like TSH, cortisol).

Serology tests (e.g., infectious disease testing like HIV, hepatitis).