Seller ProDanny

we are specialized in the manufacture of particle standards. for uniform polystyrene microspheres, the particle size range is from 60nm to 200?m.we can provide both reagent grade and industrial grade. by the way, the nano-scale particle size standards (?1?m) are nanospheres of either polytyrene or polyacrylate which can be non-crosslinked or highly crosslinked. the micron-scale particle size atandards(?1?m) are highly crosslinked polymers. what's more, we could also offer the broadest range of particle size standards that are matrixed on polyacrylic or silica dioxide.