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Transmission Electron Microscopy - Buy Miscellaneous TEM Test Specimens Online

Browse and buy miscellaneous test specimens for the Transmission Electron Microscope online at Ladd Research. Calibrating Carbon, Ferritin, Holey Film, and more available. Order online or call (800) 451-3406.

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"Holey" Film

"Holey" Film

3.0 mm diameter. Comes in 200 or 300 mesh, either copper or molybdenum

Starting at: $18.25

12030 - Calibrating Carbon

12030 - Calibrating Carbon

Where surface roughness studies are necessary, these spherical particles, lying in the range of 100-500 nm, are invaluable. Shadows of these particles accurately calibrate every area being examined. Also, the shadows may be used to calculate elevations and depressions. Complete instructions for use included.
$8.95
40800 - Catalase Crystals

40800 - Catalase Crystals

Crystals of bovine liver catalase are recommended as an internal standard of length in the electron microscope. Absolute sizes in the magnification range of 10,000 X to 150,000 X may be determined with an accuracy of +/- 2.5% and relative sizes with an accuracy of +/- 1.5%. Based on experimental data, the principal catalase lattice spacing is 172 +/- 4 Angstroms. Lattice lines separated by half this distance are used in actual size determinations. Crystals are suspended in antibacterial solution. Sealed in 10 ml glass vial.
$66.95
40770 - Nickel Screen Specimen

40770 - Nickel Screen Specimen

A 1500 mesh, 0.00015" thick nickel screen is precisely mounted within a 3.0 mm copper athene-type, double grid. The double grid is firmly secured to provide a sturdy specimen to last indefinitely. The very accurate spacings may be used to check magnification. The fine wire projections aid in the measurement of field distortions. One bar and one space measures 16.94 µm.
$33.95
40805 - Ferritin

40805 - Ferritin

If your instrument can resolve the tetrad of this protein molecule it has better than 12.5 Angstroms resolution. Supplied as a pure suspension dispersed upon a formvar substrate.
$37.95
40795 - Carbon Test Specimen

40795 - Carbon Test Specimen

A high resolution test specimen consisting of a graphitized ISAF carbon black dispersed on "lacey" carbon film supported by a 200 mesh grid. The carbon black chains bridge openings in the film so there is no substrate to interfere with resolution tests. Imaging of the 3.4 Angstrom lattice spacing of the carbon, along with the curved regions and dislocations, permit magnification calibration and check the performance of high resolution electron microscopes.
$46.95
40810 - Gold Shadowed Latex

40810 - Gold Shadowed Latex

Latex spheres are 0.234 µm in diameter.
$27.95

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Electron Microscopy Supplies