The Krystal 2000 black & white plate from Porvair Sciences is purpose designed to provide optimised performance with Chemiluminescence assays. The plates individual white wells in an opaque black polystyrene matrix design, is achieved using a patented two-shot manufacturing process. The special design of the plate eliminates the well-to-well optical crosstalk inherent with plain white plates, reducing false positives and leading to accuracy, sensitivity and repeatability of photometric readings. Very high signal-to-noise ratio and low detection limits can be achieved in chemiluminescence applications including immunoassays, enzyme assays, reporter gene assays, ATP determinations, RNA and DNA quantitation, cytotoxicity measurements, mycoplasma detection, beta-galactosidase assays and cell proliferation measurements.