A method is disclosed of making a mounting or holder for use in analysis in an analytical instrument of samples of similar shape. The method includes obtaining a moulding that includes a protrusion; securing a sample having a lower surface and a side surface to the top of the protrusion of the moulding; introducing a mouldable material into the moulding only up to a level that is along the side surface of the sample and above the lower surface of the sample; allowing the mouldable material to set to form a mounting or holder; and separating the mounting or holder from the sample and the moulding.