FIELD: medical equipment.
SUBSTANCE: cap for a biological fluid collection apparatus comprises a cap body forming a chamber, with a ventilation plug located therein. The ventilation plug contains a carboxymethyl cellulose additive. The cap is configured to reduce the interaction of plasma ions with carboxymethyl cellulose. Disclosed is an alternative variant of implementation of the cap.
EFFECT: reduction in the distortions of the analysed substance.
15 cl, 21 dwg
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