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Pipettes can be purchased from a variety of laboratory supply stores, both online and in physical locations. Well-known suppliers like Thermo Fisher Scientific, VWR, and Sigma-Aldrich offer a wide selection of pipettes, ranging from manual pipettes to automated electronic models. Other online platforms like Amazon and eBay may also have pipettes, although it’s crucial to buy from reputable sellers to ensure quality and accuracy. Specialty suppliers may also offer pipettes for specific applications, such as those designed for handling acids or other corrosive liquids. It is important to consider the type of pipette you need (e.g., volumetric, micropipette, or serological) as well as factors like accuracy, precision, and price when selecting a pipette for purchase.