Selecting a microplate on Amazon.com
A microplate, also called a microtiter plate or microwell plate, is a rectangular tray with small wells to contain substances for scientific research and clinical diagnostic testing. These trays fit in the sample drawer of a microplate reader, which analyzes the samples. Each microplate commonly has 96 or 384 wells, but can have as few as six or as many as 9,600 wells. Capacity varies widely, and each well can contain anywhere from a few microliters to several milliliters. Materials typically include plastic, such as polystyrene or polypropylene for a microplate that must withstand temperature changes. Some are black to reduce background fluorescence, others are white to enhance luminescent signals, or clear for visibility. A microplate may come with a lid to protect contents during storage. Tissue-culture treated microplates are available to facilitate cell culture in research applications. Some plates are designed for filtering applications and have deep wells with filters for extraction processes or to collect filtrate. Microplates are commonly used by biologists and scientific researchers in medical laboratories, in applications such as ELISA (enzyme-linked immunosorbent assay) medical diagnostic testing.