The sampler, or micropipette, is a highly useful tool in the laboratory. It is used to transfer a specific volume of liquids. The accuracy of these micropipettes is at the microliter level. Micropipettes are available in single-channel and multi-channel types. Single-channel micropipettes are used in laboratories where test results are related to molecular biology, microbiology, immunology, biochemistry, and genetics. Multi-channel micropipettes are more commonly used in ELISA tests, molecular screening, and similar applications.
The sampler, with the help of plastic parts called tips, can transfer specific volumes of samples. The tip is a small plastic piece that is placed on the sampler to pick up and transfer a specified volume of liquid. The volume taken by the sampler should not be so much that the liquid enters the internal part of the sampler. Tips come in various types and can generally be divided into two categories: filtered and non-filtered tips. These tips are further classified by volume into three categories: yellow, white, and blue tips. Non-filtered tips are typically used in less sensitive tests, such as examining mutations in chromosomes. On the other hand, filtered tips are very useful for sensitive laboratory activities prone to contamination, such as PCR and medical and forensic tests. Filtered tips are beneficial for individuals with no laboratory experience, as they may accidentally draw some of the sample into the sampler tube due to lack of skill, which can lead to contamination. The presence of a filter in these tips prevents the sample from entering the inside of the sampler. The yellow tips from the Fine brand are made of plastic and are single-use. These items are among the most essential laboratory supplies and are used for transferring solutions and samples. The volume of these tips ranges from 10 to 100 microliters.