Often used in both chemistry and biology labs, laboratory stirrers or mixers are typically very robust pieces of equipment, however, like so many other pieces of laboratory equipment, there are a number of makes and models to choose from. Make sure you take the follow questions into consideration when purchasing a lab stirrer or lab mixer.
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A wide range of laboratories rely on spectrophotometers to determine the concentration of a solution sample by measuring the light absorbed, or transmitted, as it passes through said sample. The range of specifications and cost of ownership are extensive, so before investing in a new or used spectrophotometer, consider asking yourself the following questions: