Holmium Oxide Glass wavelength accuracy calibration standard (241.5-637.5nm)

As far as we're aware, the Firefly FF-WAV-1-UV/VIS is the only Holmium Oxide glass calibration standard that offers the highly-demanded 241.5nm peak for validation of DNA measurements!




The Firefly FF-WAV-1-UV/VIS offers the following NIST-compliant peak values for calibrating the wavelength accuracy of spectrophotometers:

  • 241.5nm
  • 279.3nm
  • 287.6nm
  • 333.8nm
  • 360.8nm
  • 385.8nm
  • 418.5nm
  • 453.4nm
  • 459.9nm
  • 536.4nm
  • 637.5nm

Please note:


The measured wavlengths' peaks depend, among other factors, on the slit width of the user's spectrophotometer's monochromator (spectral band-pass) Our calibration measurements are performed with a slit-width of 1nm. Other widths are possible, please contact us.


Advantages of Firefly Scientific's solid state calibration standards:

  • Highly accurate and reproducible calibration of your spectrophotometer
  • Never need to be replaced
  • Never need recalibrating if handled and stored correctly
  • Scratch-resistant coating protects optical surfaces
  • Can be used in any spectrophotometer (with standard 12.5 x 12.5 x 45.0mm holder)
  • Correspond to or surpass NIST requirements and tolerances
  • NIST-traceable and compliant
Pictures shown are for illustration purposes only and may vary from the actual product in shape, colour and design
Product no.:FF-WAV-1-UV_VIS
848.32 €*

Out of stock, request delivery time



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Browse this category: Wavelength accuracy - UV/VIS and NIR