thermo fisher scientific冻存管规格

thermo fisher scientific冻存管规
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Thermo Fisher Scientific is a leading provider of scientific research equipment and solutions. One of their key products is the cryogenic storage tube, commonly known as the freezer tube or cryotube. In this article, we will explore in detail the specifications of Thermo Fisher Scientific's cryogenic storage tubes.
Thermo Fisher Scientific offers a wide range of cryogenic storage tubes, catering to diverse research needs. These tubes are designed to store biological samples at extremely low temperatures, typically at or below -80 degrees Celsius, ensuring the preservation of sample integrity. Let's delve into the key specifications of these tubes.
1. Tube Material:
Thermo Fisher Scientific cryogenic storage tubes are typically made of high-quality polypropylene (PP) material. PP possesses excellent chemical resistance, making it suitable for the storage of a wide range of biological samples, including proteins, nucleic acids, and
cells. It also offers good thermal insulation properties, ensuring temperature stability during storage.
2. Tube Capacity:
Thermo Fisher Scientific's cryogenic storage tubes are available in various capacities to accommodate diverse sample sizes. They typically range from 0.5 ml to 5 ml, allowing researchers to select the appropriate tube size based on their specific experimental requirements. The tubes are usually marked with visible graduations to enable accurate sample volume measurement.
3. Tube Closure Systems:
To ensure reliable sample containment and prevent any leakage, Thermo Fisher Scientific cryogenic storage tubes feature robust closure systems. These commonly include screw caps with an O-ring seal. The O-ring creates a secure and airtight seal, minimizing the risk of sample contamination or evaporation. Some tubes also come with external thread caps for increased sealing efficiency.
4. External Markings:
Thermo Fisher Scientific's cryogenic storage tubes are designed with external markings, facilitating quick and accurate sample
identification. The tubes are often printed with alphanumeric grids or barcode labels on the side, allowing researchers to label and organize their samples efficiently. The markings are generally resistant to common laboratory chemicals, ensuring their durability during sample handling and storage.
5. Tube Bottoms:
Cryogenic storage tubes from Thermo Fisher Scientific come with various bottom configurations to meet specific research needs. These can include conical, round, or self-standing bases. Conical bottoms are suitable for efficient sample recovery, while round bottoms are commonly used for mixing and vortexing applications. Self-standing tubes have a flat base, enabling them to stand upright without the need for additional support racks.
6. Tube Compatibility:
Thermo Fisher Scientific's cryogenic storage tubes are designed to be compatible with various storage systems and accessories commonly used in laboratories. These tubes can be stored in liquid nitrogen or mechanical freezers without any adverse effects on sample quality. They are also compatible with automated sample handling systems, making them suitable for large-scale research projects.
7. Tube Sterility:
To ensure sample integrity and minimize the risk of contamination, Thermo Fisher Scientific cryogenic storage tubes are available in sterile and non-sterile options. Sterile tubes are subjected to sterilization methods such as gamma irradiation or ethylene oxide treatment. Non-sterile tubes, on the other hand, provide
flexibility for researchers to carry out their own sterilization procedures if required.
In conclusion, Thermo Fisher Scientific offers a comprehensive range of cryogenic storage tubes with various specifications. These tubes are designed to meet the critical storage needs of researchers, providing reliable sample containment and preservation at ultra-low temperatures. With their extensive range of capacities, closure systems, markings, and compatibility, Thermo Fisher Scientific cryogenic storage tubes are an essential tool in the scientific community for the successful preservation of valuable biological samples.。