Agar Scientific specialises in offering and producing a wide range of specimens specifically for TEM calibration where quantification or high resolution results are required. We endeavour to maintain the highest possible preparation standards in their production and where possible, we offer specimens that are certified. Agar Scientific calibration specimens for TEM are renown worldwide for their quality and reliability and each one is checked in an electron microscope. Specimens are rejected for exceeding 5% broken grid squares, for excessive dirt, or for inadequate image quality. These criteria govern every Agar calibration specimen. All specimens are prepared on standard 3.05mm copper grids.
Perforated Carbon Film, 3.05mm grid AGS100
This specimen is one of the quickest and easiest to use for performance checks since it gives information about nearly all causes of loss of resolution.In Stock£22.44In Stock
High Resolution Test Specimen - Gold Particles on Carbon Film AGS132An arrangement of finely dispersed thin gold particles has an advantage over single crystal gold foil for tests of high resolution imaging capabilities in TEM.Call for leadtime£46.48Call for leadtime
Ferritin, 3.05mm grid AGS126Ferritin molecules display a quad structure with a separation of 1.25 nm, which is useful as a resolution check.In Stock£18.57In Stock
Evaporated platinum / iridium, 3.05mm grid AGS114The evaporated platinum/iridium specimen is supplied on a perforated carbon support film that provides holes for ease of focus and astigmatism correction.In Stock£17.03In Stock
Combined test specimen, 3.05mm grid AGS142A perforated carbon film is shadowed with gold and graphitised carbon particles are deposited.In Stock£40.87In Stock
Standard for HVEM AGS155Normal resolution test specimens are difficult to see on the viewing screen because of low contrast.In Stock£23.21In Stock
