Abstract: A system for containing a sample for analysis by a spectrometer, comprising a sample receptacle unit with a well for containment of the sample, the well comprising a well inner wall and well floor, a floor aperture in the well floor, and comprising a first spectroscopy element, the first spectroscopy element spanning the opening of floor aperture, wherein the well further comprises a sealing material at the interface of the inner wall with the first spectroscopy element, wherein radiation is free to pass through the floor aperture to the first spectroscopy element.

Abstract: A die arrangement for pressing, sintering or stamping comprising: a die body with a cavity extending from an opening at a first end of said die body to an opening at a second end of said die body, and one or more moving parts arranged around the opening at said first end of said die body, wherein each moving part is displaceable between a first position and a second position. The die body may be configurable to receive a die plunger at said second end of said die body, said plunger being displaceable within the cavity.