Electric pipettes, as a common liquid transfer tool in laboratories, are widely used in various fields such as life sciences, chemistry, medicine, etc. due to their high efficiency, precision, and convenience. However, in order to ensure its accuracy and extend its service life, regular cleaning and maintenance cannot be ignored. This article will provide a detailed introduction to its cleaning and maintenance steps to help users properly maintain the equipment.

1、 Cleaning steps

1. Disassemble the components of the pipette:Electronic pipetteIt is composed of multiple parts, including the pipette body, suction head seat, suction head, control part, etc. Attention should be paid to the order and method of disassembly to avoid component damage. Generally speaking, the suction head seat and suction head part are the most prone areas to accumulate liquid residue, so they must be cleaned thoroughly.

2. Cleaning the suction head holder and pipette body: Warm water and neutral cleaning agents can be used to clean the suction head holder and pipette body. Pour the cleaning agent into water and gently wipe with a soft brush or cloth, being careful not to scratch with hard objects to avoid damaging the surface. After cleaning, rinse with clean water and dry with non-woven fabric. For the control part of the pipette body, it can be wiped with a soft damp cloth. It is not recommended to directly immerse it in water to prevent the circuit from getting damp.

3. Cleaning the suction head and other accessories: If the suction head is detachable, it should be cleaned or replaced with a new one after each use. For non disposable suction tips, they can be cleaned with alcohol or specialized pipette cleaning solution to ensure the removal of any residual liquid.

4. Check and clean the filter: Some are equipped with filters or air valves, which may be contaminated by particles in liquids or air. Check if the filter is clogged and clean it by blowing it with compressed air or soaking it in a suitable solution.

2、 Maintenance suggestions

1. Regular calibration: After a period of use, the accuracy of the electric pipette may change, so regular calibration is required. Calibration can be performed using a standard liquid of known volume and a high-precision balance to ensure accuracy.

2. Replace aging components: After long-term use, certain components (such as suction head seats, sealing gaskets, etc.) may experience aging or wear, leading to a decrease in sealing performance. At this point, these components should be replaced promptly to ensure normal operation.

3. Avoiding improper use: While cleaning and maintenance are important, proper usage is equally crucial for extending its lifespan. Avoiding improper use such as forced operation, excessive tightening of the suction head seat, and frequent high-precision pipetting can effectively reduce losses.

4. Storage precautions: When not in use, it should be stored in a dry and clean environment to avoid prolonged exposure to high temperatures, humidity, or corrosive environments.

Regular cleaning and maintenance of electric pipettes can not only ensure their efficient and precise performance, but also extend their service life. Users should follow the correct cleaning steps, regularly inspect and calibrate equipment to ensure that it is always in optimal condition. Through scientific and reasonable maintenance, continuous and reliable support can be provided to the laboratory to ensure the accuracy and reproducibility of experimental results.