All tubes have a paper label.
CAT serum tubes with sep clot activator
Vacuette® CAT serum sep clot activator tubes contain an inert separator gel on the base of the tube which, after centrifugation, forms a stable barrier between the serum and the blood clot. Vacuette® CAT serum sep clot activator tubes improve the serum yield and allow samples to be stored in primary tubes.
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