Streck - Cell Preservative®

Streck Cell Preservative™ is a specially formulated liquid preservative for the stabilization of cellular antigens, particularly cluster of differentiation (CD) markers, in biological samples. It allows storage for up to seven days at room temperature without significant degradation or change in cell morphology, preserving the integrity of samples for subsequent immunophenotypic analysis by flow cytometry.

The preparation is suitable for a wide range of sample materials, including peripheral blood, umbilical cord blood, bone marrow aspirates, surgical tissue samples and fine needle aspirates. The chemical stabilization of cell structures and antigen epitopes eliminates the need for immediate sample processing or cryopreservation. This helps to make logistical processes more flexible, especially when taking samples at external locations and then transporting them to central diagnostic laboratories.

A major advantage of the Streck Cell Preservative™ is the standardized application with a fixed mixing ratio of 1:1 between sample and preservative solution. This simple handling minimizes potential variability in pre-analysis and ensures reproducible sample quality for subsequent analytical procedures.

In summary, Streck Cell Preservative™ is an effective and practical solution for short-term stabilization of hematological and cytological samples. It optimizes the laboratory workflow, reduces pre-analytical artifacts and improves the comparability of flow cytometry data by prolonging the preservation of immunological marker expression.