What are the consequences of a poorly selected pipette tip?
People are generally very cautious when buying pipettes, and want to spend a little price to buy a good well-known brand with high accuracy; but when we buy tips, we don't pay much attention to it, and we will randomly buy some cost-effective ones. In fact, the tip is also the primary condition that endangers the test results, and it is also likely to endanger the service life of the pipette. So tipping is particularly important.
There are three types of tips: ordinary tips, filter tips and low adsorption tips.
1. Ordinary tip.
Tips and tip boxes can be autoclaved at 121°C/15psi. It is suitable for pipettes of different well-known brands and different models and specifications, with excellent compatibility. The tube body has good clarity, and the scale line is clear, which is easy to observe when using. Solvent resistance. Economical paper bag packaging, reasonable PE bag packaging, to avoid environmental pollution.
2. Filter tip
Some students often report that when the pipette gun is disassembled and repaired, they can't bear to look directly at the inside. The stainless steel piston rod is etched. How to solve it? At this time, consider the filter tip.
The filter tip is a new upgrade of the ordinary tip. The filter tip is added to the general tip, and the diameter is enlarged, which ensures excellent ventilation while isolating the actual effect. There are many models: 10/100/200/1000 microliters. The color is completely transparent.
There are three advantages: 1. Ensure the safety of testers: it can reduce the spread of dangerous goods and ensure the life safety of actual operators to a greater extent. 2. Ensure sample safety: no pyrogen, no Dnase/Rnase, no PCR inhibitors, to avoid cross-environmental pollution. 3. Ensure the safe use of the pipette: prevent liquid from rushing into the cavity, maintain accuracy and accuracy, and increase the service life of the pipette.
3. Low suction tip.
The surface layer of the low adsorption tip is treated with a hydrophobic solution, which can reduce the situation that low interfacial tension liquid leaves more residue in the tip. It can minimize sample damage, prevent protein digestion and absorption, and easily remove sticky raw materials, genetic DNA or fragile cell culture substrates. It is the best guarantee for obtaining high-precision test results.
