Cryogenic vials & tubes

With an external thread, the cap screws over the outside of the tube, so the inner rim is not touched when you open it; many labs prefer this for cell work, as with the cryotube with external screw cap, 5 ml. An internal thread keeps the outer diameter small, so tubes often sit closer together in boxes, such as the cryotube with internal screw cap, 5 ml. Tubes with a skirted base stand on their own; round-bottomed tubes need a rack. Boxes are in cryo boxes, racks and freezer storage. Questions? Ask sales@luminixhealth.com.

Choose the volume for what you freeze: small volumes such as 2 ml suit cell stocks and aliquots, while 4, 5 or 10 ml tubes hold larger samples, such as the cryogenic vials, 10 ml, sterile. Volume and height decide which box height you need, so pick both together. A graduated tube lets you read the fill level without a pipette; non-graduated tubes, like the cryotubes with silicone liner, 4 ml, leave more space for labels. Leave headspace, because liquids expand when they freeze. Unsure? Ask sales@luminixhealth.com.

Only if the product page says so. Storage in the liquid phase puts high demands on the tube and the seal: if liquid nitrogen leaks in, it can expand violently when the tube warms up. Where the page does not confirm liquid-phase storage, store the tubes in the vapour phase above the liquid. Always thaw tubes from nitrogen behind a shield or in a closed container and wear a face shield and cryo gloves. Protective sleeves, gloves and canes are in cryogenic accessories. Not sure what a specific tube allows? Ask sales@luminixhealth.com.

It depends on the sample. For cell lines and other living material, choose sterile tubes; the product title states sterility, as with the cryogenic vials, 10 ml, sterile. A silicone seal in the cap gives a tighter closure at low temperature, such as the cryotubes with silicone liner, 4 ml. A white write-on area and coloured caps or inserts make tubes easier to find. For durable marking, use labels and markers made for freezing from cryo labels and markers. Questions? Ask sales@luminixhealth.com.

A cryogenic vial is a small tube with a seal made for very low temperatures. Internal and external threads differ. A vial that will see liquid nitrogen has to be rated for it, and it should not be overfilled, because trapped liquid expands. The cap insert is part of the seal.

Cold storage slows chemistry and keeps cells, proteins and nucleic acids from falling apart. A cryogenic vial is made to survive liquid-nitrogen temperatures and to be sealed against the liquid. A box and a rack are how those vials are found again. The article is not part of free standard delivery when it must stay cold: cold-chain goods are never included in that free delivery. Biosafety of the material inside is summarised by the WHO laboratory biosafety topic. Reference lines are held by ATCC.

This shelf belongs to Cryogenics & cold storage, inside Lab consumables. Luminix Health distributes this range for laboratory use.

The neighbouring shelves are Cryo boxes, racks & freezer storage and Cryo labels & markers. The category above this shelf is Cryogenics & cold storage.

Luminix Health distributes this range from the heart of Europe. We deliver across the EU in two to five days if in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology. If the article is not on the shelf, request a quote.