Centrifuge tubes are a common laboratory consumable, mainly used in conjunction with centrifugal dewatering machines. The test liquid is loaded into these tubes and then put into the centrifuge for filtration.
Extra tips are specially planned for extra samples or extra applications. There are the following categories: the first category is the gel tip (also known as point sample tip): tip or flat or very thin, mainly used for electrophoresis test; the second category is a wide-mouth tip: tip caliber is larger than the general tip, mainly used to remove proteins and other large molecules of solution; the third category is a low adsorption tip: the inner wall of this type of tip after special treatment to reduce the surface of the adsorption force can be used to remove viscous liquids; the fourth category is a longer tip: mainly used in volumetric flasks and other containers to take liquid; the fifth category is an external pipette. The fourth category is the elongated tip: mainly used in volumetric flasks and other containers to take liquid; the fifth category is the external piston tip: mainly used for external piston pipette and continuous dispenser and other extra pipettes.
What is a suction head? What is a good suction tip? How to choose a suction head?-This is the common perception of almost all users about the suitability of a suction head. This statement can be said to be partly but not entirely true.
Steps of use:According to the volume of the solution to be moved and the requirements to choose the appropriate specifications of the pipette to use, in the titration analysis to accurately move the solution is generally used pipettes, the reaction needs to control the amount of test solution added when the general use of pipettes.
Pipette tips on the market are basically made of polypropylene plastic (a colorless, transparent plastic that is highly chemically inert and has a wide temperature range for use). However, the same polypropylene can vary greatly in quality: high-quality tips are generally made of natural polypropylene, while cheap tips are most likely made of recycled polypropylene plastic (in which case we can only say that its main ingredient is polypropylene).
Centrifuge tube selection requirements1、Volume: determined by the volume of the sample. Note that in some applications (e.g., high-speed centrifugation) tubes must be filled to capacity.2、Shape: For sediment collection, centrifuge tubes with conical bottoms are preferred, while round-bottomed tubes are more useful for density gradient centrifugation.
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