serum separator tube

A serum separator tube is a specialized blood collection tube used in laboratories to separate the liquid part of blood, called serum, from blood cells. It contains a gel that, after centrifugation (spinning), forms a barrier between the serum and the packed blood cells. This allows for easy and efficient separation, making it ideal for various blood tests that analyze chemicals, hormones, or antibodies. The tube typically has a stopper, often red or gold, and is designed to ensure sample stability and safety during handling and testing.