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Protect Your Samples from Acidification When Shipped On Dry Ice

Available in 15ml and 50ml sizes, sterile or non-sterile


The new ProtectR® tubes, now available from Alpha Laboratories, have the only container closure system engineered to be CO2 resistant.

This prevents costly damage to molecular and cellular solutions when shipping or storing samples on dry ice. Standard centrifuge tubes do not provide a reliable barrier against CO2 and even during short term dry ice storage can result in acidification of samples, with a decrease in pH by as much as 2.5 pH units. This acidification can affect the integrity and reproducibility of samples, and may result in a loss of protein activity.

Made of durable, high quality materials and fitted with an air-tight cap, ProtectR Tubes form a protective barrier, impermeable to CO2, keeping the sample pH stable and preventing acidification. Available in 15ml and 50ml sizes, sterile or non-sterile, they provide the ideal shipping tube for both small and large volume samples. In addition to primary sample containment they can be used as a secondary shipping tube for multiple small volume tubes.

ProtectR tubes are IATA 95kPa certified for packaging and air transport of biological samples and meet the UN1845 requirements for shipment on dry ice.

Please visit for further information or contact Alpha Laboratories on 0800 38 77 32 or email This email address is being protected from spambots. You need JavaScript enabled to view it..

About Alpha Laboratories Ltd
Established in 1975, Alpha Laboratories’ ongoing mission is to continually find new ways to help science improve people’s lives through its evolving specialist diagnostic and laboratory supplies.
The top quality range of laboratory consumables includes Pastettes®, pipette tips, pipettes, general liquid handling, microtubes and racks, and PCR consumables. The diagnostics portfolio offers specialist assays, controls, reagents and hardware systems used in blood grouping, clinical chemistry, haematology, haemostasis, immunology and rapid test specialities.
The company is BS EN ISO 9001:2008 and 14001:2004 accredited and certified for Investors in People and Workplace Conditions Assessment.