Pipette common fault diagnosis

The pipette is a device commonly used in biological and chemical laboratories and has the characteristics of being able to be calibrated by the user himself, aided in disassembly and maintenance. However, before sharing the common faults and solutions of the pipette, please take a look at its characteristics:

1. Ten specifications, including the volume change from 0.1ul to 5ml, meet the conventional needs, while the accuracy and error are high.

2. The lower part of the whole pipette can be sterilized by high temperature. As long as the lower part is gently unscrewed, it can be detached and sterilized. Therefore, it is possible to perform some work that is biologically dangerous or has relatively high sterility requirements.

3, ergonomic exterior design.

4, in line with ISO9000 and GLP regulations, users can independently calibrate. Digitally adjustable pipette calibration requires no tools, and stationary pipette calibration requires only a small tool. At the same time there is a higher accuracy and error coefficient.

5. Each pipette has a pipette performance certificate provided by the factory to obtain relevant data after a series of complete tests.

6, the pipe can rotate 360, without tools can be 121 °C high temperature sterilization.

7. The suction nozzle has a unique V-shaped ring that can fit different brands of suction heads.

Pipette common failures and solutions If not used, to adjust the range of the pipette to the maximum scale, so that the spring is in a relaxed state to protect the spring.

It is advisable to clean the pipette on a regular basis. You can use soapy water or 60% isopropyl alcohol, then rinse with distilled water and air dry naturally.

Before high temperature sterilization, make sure that the pipette can adapt to high temperatures.

The calibration can be performed in a 20-25 degree environment by repeating the weighing of distilled water several times.

Check for leaks during use. The method draws liquid and suspends it vertically for a few seconds to see if the liquid level falls. If there is leakage, the reasons are as follows:

1. Whether the gun head matches

2, the spring piston is normal;

3. If it is a volatile liquid (many organic solvents do), it may be a problem with saturated vapor pressure. You can suck and release the liquid several times before pipetting.