Exploring the advantages and achievable accuracy of using peristaltic pumps to transport magnetic bead suspensions

Magnetic bead suspension is a special liquid composed of magnetic particles and liquid. Magnetic particles are usually small particles of metals such as iron, nickel, and diamond, which can be suspended in the night body to form a magnetic liquid. Magnetic beads are floating liquids with many unique properties, and therefore have wide applications in many fields.

Magnetic bead suspension has strong magnetism. Due to the presence of magnetic particles, magnetic bead suspensions can be controlled by a magnetic field. This property makes magnetic bead suspensions widely used in the preparation of magnetic materials, manufacturing of magnetic sensors, and other fields.

It is precisely because magnetic beads are a suspension containing small particles that the filling and transportation of magnetic beads have higher requirements for pumps. Among them, pump types that are more suitable include peristaltic pumps, ceramic pumps, etc. Ceramic pumps, due to the back and forth movement of the piston and cavity, will cause certain damage to the ceramic pump when particles enter the gap between the piston and cavity, and the magnetic bead liquid will also lose beads, which is not very friendly to production experiments.

Peristaltic pumps have the characteristic of low shear force, and some active biological liquids are also preferred to be transported and filled with peristaltic pumps. Therefore, if peristaltic pumps are used for transmission and filling, the phenomenon of bead loss should be alleviated. Moreover, such small particles can be accommodated by peristaltic pumps. Even if a 13 # fine tube with an inner diameter of 0.8mm is used to fill a slightly upgraded magnetic bead suspension, there will be no problem of pipeline blockage.

However, magnetic bead suspensions containing rare metals can be relatively expensive. In the past few years, people seem to have an inherent impression of peristaltic pumps, which is low accuracy. Therefore, in some situations where peristaltic pumps are suitable, the accuracy issue of peristaltic pumps is also avoided. In order to solve this problem and change people's perception of peristaltic pumps, our company has been committed to researching how to improve the filling accuracy of peristaltic pumps for decades, You can see that most of the videos on our company's official website showcase filling accuracy, which is our main focus. Even small quantities such as micro liter level filling are no exception. Therefore, customers who want to use peristaltic pumps but are concerned that their accuracy may not be achieved can contact us. Filling accuracy of tens of micro liters can be guaranteed to be within ± 0.5 micro liters. After our company's filling experiment, the accuracy of magnetic bead liquid is actually easier to ensure than water. We welcome users to call our company for consultation.