ResourceGeneral Lab

How to optimize the focal height of your microplate reader measurements

17 Sept 2024

In a microplate reader, the focal height is defined as the distance between the detection system and the microplate (i.e., the sample). The optimal focal height indicates the plane at which the microplate reader can detect the highest signal intensity of a sample. Therefore, the focal height setting is important for appropriately depicting all data points of your assay, and for reducing data variation. Explore how to optimize the focal height of your microplate reader measurements, and learn more about how performing focal height adjustments before your measurement ensures that your microplate reader will record your test samples correctly.

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MicroplatesMicroplates are multi-well plates used to increase the throughput of biological investigations. The number of wells microplates contain can range from 6 to 3243 wells, with the 96-well format being the most commonly used. Microplates can come tailored for a range of applications including cell culture, PCR, filtration, storage, non-binding surface, protein crystallization, as well as pre-coated, deep well and normal Standard microplates. Additionally, options for microplate colors include clear , black, white or black with clear bottom and white with clear bottom for absorbance microplate reader applications. Find the best microplates for your lab in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Microplate Readers / DetectorsMicroplate readers are used to automate the detection and analysis of labeled or label-free components in microplates during assays or live-cell monitoring. Microplate readers are generally distinguished by their mode of detection. Types include absorbance, luminescence, fluorescence intensity, fluorescence polarization, TRF / FRET and multimode microplate readers. Microplate readers deliver a high throughput of samples by reading multiple wells simultaneously, with the 96-well format the most commonly used. As a result, microplate readers are often used in the drug discovery, bioassays, research and pharmaceutical industries for screening applications. Microplate loading can also be automated, with robotic microplate stackers to increase throughput. Find the best microplate readers in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.
How to optimize the focal height of your microplate reader measurements