50.6 MB (1.0 MB compressed)
4857 x 3643 pixels
41.1 x 30.7 cm ⏐ 16.2 x 12.1 in (300dpi)
ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY / SCIENCE PHOTO LIBRARY ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY / SCIENCE PHOTO LIBRARY
Immunoassay sample preparation. Techinician preparing immunoassay samples for optical analysis using a plate reader (right). She is using a multipipette to fill a multi-well sample tray. Immunoassay is a biochemical test that measures the concentration of a particular substance in a biological liquid such as urine.
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