Screw Cap Microcentrifuge Tubes

Screw Cap Microcentrifuge Tubes, Self-Standing, with O-Ring Seal

Nanostore Screw Cap Microcentrifuge Tubes has a consistent sealing solution for sample storage, organic solvent handling, and long-term preservation applications. The precision screw cap design delivers a leak-proof O-ring seal that snap-cap tubes cannot match – making these tubes the preferred choice for volatile samples, extended storage, and applications requiring maximum containment security.

Key Features

**Leak-Proof O-Ring Screw Cap**
Each tube ships assembled with cap and integrated O-ring seal. The threaded screw cap with O-ring creates a mechanically secure, airtight closure that prevents evaporation, leakage, and cross-contamination during storage and centrifugation – critical for organic solvents, volatile reagents, and long-term sample archives where snap-cap failure is not acceptable.

**High-Force Centrifugation Fits**
Rated to withstand centrifugal forces up to 20,000 x g, supporting high-speed microcentrifuge protocols including protein pelleting, cell harvesting, and nucleic acid precipitation without tube deformation or cap failure.

**Virgin Polypropylene Construction**
Manufactured from virgin polypropylene (PP) for consistent chemical resistance against acids, bases, alcohols, DMSO, and most common laboratory reagents. The inert surface minimizes sample adsorption and ensures fit across biological and chemical applications.

**Autoclavable**
Fits with standard autoclave sterilization at 121°C, allowing in-house sterilization when sterile conditions are required.

**Certified Purity**
DNase free, RNase free, and pyrogen free. Safe for nucleic acid work, protein assays, and sensitive biological sample storage.

**Self-Standing Base**
Skirted self-standing base permits tubes to remain consistent on the benchtop without a rack – simplifying filling, labeling, and retrieval in high-throughput workflows.

**Graduated Markings and Writing Area**
Frosted writing area for sample identification. Graduation marks permits direct volume reading without transferring to a measuring tube.

**Tube Geometry**
– *0.5mL (Conical Bottom):* Conical base concentrates pelleted material to a defined point for functional and complete recovery after high-speed centrifugation. Applicable for small-volume enzyme aliquots, reagent storage, and nucleic acid work.
– *1.5mL (Conical Bottom):* Standard conical base design for maximum pellet recovery and fit with the widest range of microcentrifuge protocols. The most versatile format for everyday molecular biology workflows.
– *2.0mL (Round Bottom):* Rounded interior base and cylindrical body.

Technical Specifications

– **Material:** Virgin polypropylene (PP)
– **Cap:** Assembled screw cap with integrated O-ring
– **Base:** Self-standing skirted
– **Color:** Natural/Clear