Malfunction Inspection Of Pipette Tips And Pipette Stand

Most of the pipette tips in the manufacturing process are added to a small number of additives, such as color materials and release agents. The color materials are the addition of corresponding chromogenic materials to polypropylene; the release agent is often used to help the pipette tips to detach quickly from the mold after forming. Of course, the more additives, the higher the probability of undesirable chemical reactions occurring in the liquid transfer process. So it's better not to add additives. Hawach always consistent in the high requirements for the production process, the pipette tips are made of pure polypropylene to guarantee good performance.

Common Malfunction
Hawach lists some common questions which often occurred in the operation of pipette tips, such as fluid-spilling or inaccurate volume in the fluid transfer process, non-smoothly moving lever, the blocked fluid in the suction process. Hawach provides some fault diagnosis and removal methods for you to remove commonly occurred troubles.

Causes and Solutions
For fluid-spilling or inaccurate volume in the fluid transfer process, it is possible because the pipette tip is too loose, the unmatched suction head is used, the vapor pressure of the transferred liquid is large, the suction head moves out of the liquid at a speed too fast, the piston is contaminated or the piston is damaged. For the above questions, it's better to tighten the pipette tips, clean and lubricate piston, replace piston or sealing ring.

For non-smoothly moving lever, the possible reason is that piston contamination, seal contamination, or solvent vapor infiltration. In this case, it is better to clean and lubricate pistons, disassemble the pipette tips, clean sealing rings if necessary.
For the blocked fluid in suction, it may be caused by clogging of the suction head in connection, and the trouble can be removed by removing the suction head with hot water or rinsing with distilled water.

Malfunction Inspection Of Pipette Tips And Pipette Stand