Sampleris a practical and key tool in various laboratories. A sampler is also called a pipette or a micropipette, which is used to transfer a specified volume of liquids. Working with sampler requires knowledge, expertise and experience. If the user does not have enough skills, the possibility of error in the test increases and the user may face risks.
Samplersare divided into different types, in the first division of the fixed sampler is separated from the variable. The fixed samplertransfers a fixed and unchangeable volume of liquids and solutions, but the variable sampler can transfer a desired volume determined by the operator in a certain interval. The samplers available in the market can usually handle the volume of 0.1 to 10000 microliters.
The second division of samplers is single-channel and multi-channel samplers in such a way that single-channel samplers have one channel and can transfer the specified volume in one channel, but multi-channel samplers can transfer the specified volume in several channels. move Single-channel samplers are used for PCR technique and multi-channel samplers for ELISA technique. Multi-channel samplers are of 8 and 12 channel types.
In another division, samplers can be simple or electronic. In the simple type, most of the available samplers are of this type, the different stages of liquid movement are done by mechanical hand power, but in the electronic type, the transfer stages are done by electric power and uniformly. .
The piston of the samplers is usually not in direct contact with the solution, but in some cases of transfer of mixed solutions, a sampler is used where the piston is in direct contact with the solution so that the desired test can be performed efficiently.
Samplers are of two types from another point of view, they are either simple or autoclavable. The autoclavablecomponents of the sampler can withstand a temperature of 121 degrees for 20 minutes, which disinfects all the components of the sampler.