At Princeton Chromatography, it is our mission to provide our customers with a complete chromatography solution. To that end we offer the majority of our stationary phases in bulk form. Each stationary phase is available in a variety of particle sizes, ranging from 10u to 20u for spherical and much larger on irregular silica. We have the capacity to produce multiple kilogram quantities of media and can support even the largest projects. Our bulk bonded media has been proven time and time again as highly scalable and extremely reliable. All bulk media provided by Princeton Chromatography is custom bonded on site and is subjected to extremely stringent quality standards.