In precise experimental operations and rigorous scientific research environments, pipette tips are a key tool for liquid transfer, and the choice of their materials is directly related to the accuracy of the experiment, the purity of the sample, and the reliability of scientific research data. Pipette tips made of different materials have unique advantages and limitations in terms of chemical stability, transparency, cost-effectiveness, durability, and sterilization.

1. Polypropylene plastic (PP) 1. Chemical stability: Polypropylene plastic pipette tips have high chemical stability, can withstand the erosion of a variety of chemical reagents, and are suitable for most laboratory environments. 2. Transparency: Polypropylene plastic tips usually have high transparency, which makes it easy to observe the liquid inside the tip and ensure the accuracy of pipetting. 3. Cost: Polypropylene plastic has abundant raw materials and relatively low processing costs, so the price of polypropylene plastic tips is usually more affordable. 4. Sterilization: Polypropylene plastic tips are easy to undergo various sterilization treatments such as high-temperature and high-pressure sterilization, alcohol immersion sterilization, etc. to ensure a sterile environment for experiments. 5. Durability: Polypropylene plastic tips have a certain degree of durability, but they may deform or break under certain extreme conditions (such as high temperature and high pressure).

2. Glass 1. Chemical inertness: Glass tips have excellent chemical inertness and are not easy to react with samples. They are especially suitable for experiments that require extremely high sample purity. 2. Transparency: Glass tips also have high transparency, and the transparency is purer, allowing you to clearly observe the color and state of the liquid. 3. Cost: The cost of glass raw materials is high, and the processing process is relatively complicated, so the price of glass tips is usually higher. 4. Sterilization: The glass tips can withstand high-temperature and high-pressure sterilization, and are not easily deformed or broken after sterilization, ensuring a sterile environment for experiments. However, it should be noted that glass tips require special care during the sterilization process to avoid breakage caused by sudden temperature changes. 5. Durability: Glass tips have high durability and can withstand large pressure and temperature changes, but you still need to be careful to avoid collision or falling during use.

3. Other materials In addition to polypropylene plastic and glass, there are also pipette tips made of other materials on the market, such as stainless steel. However, these materials have relatively few applications in the field of pipette tips, mainly because of their shortcomings in cost, transparency, biocompatibility or chemical inertness.

4. Material Selection Suggestions When selecting the material of the pipette tip, the following factors should be considered: 1. Experimental requirements: Select the appropriate material according to the specific requirements of the experiment. For example, experiments that require extremely high sample purity should use glass tips. 2. Cost-effectiveness: On the premise of ensuring the quality of the experiment, consider the cost-effectiveness of the material. Polypropylene plastic tips are popular because of their low cost and ease of processing and sterilization. 3. Biocompatibility: For experiments involving biological samples, materials with good biocompatibility should be selected to reduce contamination and interference to the samples.

The material selection of pipette tips should be comprehensively considered based on factors such as experimental needs, cost-effectiveness, and biocompatibility. When selecting, be sure to ensure that the selected material meets the experimental requirements to ensure the accuracy and reliability of the experimental results.

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