What is a centrifuge tube?
What is a centrifuge tube?
Definition: Tubular sample container, available with a sealing cap or a gland.
Disciplines: Mechanical Engineering (first-level discipline); laboratory instruments and devices (second-level discipline); laboratory centrifuge - laboratory centrifuge parts and accessories (third-level discipline).
What are the types of centrifuge tubes?
1. By size
Large volume centrifuge tubes (500mL, 250mL)
Ordinary centrifuge tubes (50mL, 15mL)
Microcentrifuge tubes (2mL, 1.5mL, 0.65mL, 0.2mL)
2. Follow the bottom shape
Conical centrifuge tubes, with a conical bottom, are the most used type of centrifuge tubes
Flat bottom centrifuge tube
round bottom centrifuge tube
3. Follow the lid closing method
Capped centrifuge tubes, centrifuge tubes that are sealed by pressing, commonly found in microcentrifuge tubes
Screw cap centrifuge tubes can be divided into flat caps (the top of the cap is flat) and plug caps (the top of the cap has a plug shape)
What is the function of the cap of the centrifuge tube?
All plastic centrifuge tubes have caps, and the caps must be tightly closed to prevent liquid leakage.
The role of the cap:
1. When used for radioactive or corrosive samples, prevent the sample from leaking.
2. Prevent the sample from volatilizing.
3. Support the centrifuge tube to prevent deformation of the centrifuge tube.
Fundamental of Centrifugal Technology
In biological science, especially in the field of biochemistry and molecular biology research, it has been widely used, and each biochemistry and molecular biology laboratory must prepare various types of centrifuges. Centrifugal technology is mainly used for the separation and preparation of various biological samples. The biological sample suspension is placed in a centrifuge tube under high-speed rotation. Due to the huge centrifugal force, the suspended tiny particles (such as organelles, precipitation of biological macromolecules, etc. ) settles at a certain speed so as to be separated from the solution.
Fundamental:
When a particle (biomacromolecule or organelle) is subjected to centrifugal force under high-speed rotation, the centrifugal force "F" is defined by the following formula, namely: F = ma = mω2 r a - acceleration of particle rotation, m - effective Mass, ω - angular velocity of particle rotation, r - radius of rotation of particle (cm). Usually centrifugal force is often expressed as a multiple of Earth's gravitational force, so it is called relative centrifugal force "RCF". Or multiply the number by "g" to express. For example, 25000×g means the relative centrifugal force is 25000.
Centrifugal tube supplier:
Geneture is manufacturer for kinds of lab consumables, include: deep well plate, mag-rod sleeve, pipette tips, VTM, swabs, PCR tubes, PCR plate, centrifugal tubes, cryogenic Vials, saliva collection and so on.