Select the mortar and pestle that has the right characteristics and price for your application. Mortar and pestle sets come in a variety of different materials of construction. Consideration should be given as to whether what is being used currently is indeed the "right" choice given the lower limits of detection possible with modern analytical instrumentation.
Zerostat® 3 Antistatic Gun Effective in neutralizing static charges on virtually any surface and lends itself to a host of other applications. Ideal for use in EM labs for eliminating dust from critical samples or other critical surfaces when the dust attraction was being caused by electrostatic charge.
Nuclepore polycarbonate filters contain uniform, cylindrical pores, preferentially etched into the membrane, allowing for an even distribution of a collected sample in one plane across the entire exposed membrane surface. Contaminant-free, these microporous screens are biologically inert, and offer excellent chemical resistance and thermal stability.