Streck Cell-Free DNA BCT® CE blood collection tubes allow isolation of high-quality cell-free DNA (cfDNA) for use in a wide range of applications such as non-invasive prenatal testing (NIPT) and liquid biopsies. Available exclusively in the UK from Alpha Laboratories, they contain a unique preservative that stabilises nucleated blood cells, prevents the release of genomic DNA (gDNA) and minimises the degradation of circulating tumour cells (CTCs).

Cell-Free DNA BCT tubes improve pre-analytical workflows by simplifying collection, storage, and shipping of whole blood samples for circulating tumour biomarker assays. They avoid the need for immediate plasma preparation and CTC processing at the collection facility whilst ensuring sample integrity is maintained. Enhanced stability and recovery of cell-free plasma DNA minimises variability associated with cell-free DNA sample preparation, ensuring consistent results are achieved. The tubes stabilise CfDNA and gDNA are for up to 14 days at 6°C to 37°C and CTCs are stable for up to 7 days, at room temperature.

Blood samples often need to be transported between clinic and laboratory. They are subject to Category B Biological Substances, UN3373 regulation. For transportation, they must be packaged according to the IATA DGR (air transport) or ADR (transport by road) Packing Instructions 650.

Following pressure differential testing performed per IATA UN3373 standards, Cell-Free DNA BCTs have been certified fully 95kPa IATA compliant. This means they can now be paired with the unique SpeciSafe® packaging solution for convenient transportation.

SpeciSafe is an all-in-one secondary packaging system that combines an ultra-absorbent material bonded to a rigid container with built in tube separation. It is designed to conveniently fulfil the requirements of UN3373 regulations by providing leak-proof protection of sample tubes. Together with a padded envelope or bag as the outer packaging for road transport, or a rigid outer box for air transport, these mailing packs offer a perfect, compliant solution for transportation of Cell-Free DNA BCTs containing blood samples. They are quick and easy to use and come in a range of sizes to ship a single blood tube up to five in one pack.

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