BioSource International and Whatman Schleicher & Schuell are set to launch the first commercially available planar phosphoarray, the companies said this week.

The array, called the Mercatur Phosophoarray, contains 10 analytes — each specific for a different phosphosite. The decision to make the new array grew out of customers’ demand for a product that could analyze multiple phosphosites at the same time, said Chris Brotski, senior product manager for Camarillo, Calif.-based BioSource International.