Far UV Wavelength Rare earth oxide

Far UV Wavelength (New See Elab's article for further information)
For the measurement of this fundamental parameter, Starna® offers you sealed cell materials. Please note that your selection process should not only include the wavelength(s) required, but also the spectral bandwidth (SBW) of your spectrophotometer. Use of the reference materials outside the SBW range detailed is not excluded, but at higher spectral bandwidths some of the certified peaks may not be resolved from the overall
background spectrum.

Rare Earth Oxide – UV Wavelength
Description: Rare earth oxide in dilute sulphuric acid.
Primary Usage: Assessment of wavelength scale accuracy in the UV region.
Useable range: 200nm to 300nm, instruments with spectral bandwidth of less than 5nm.
Physical Configuration: Far UV quartz cells that have been permanently heat sealed.

Product Description:
The use of rare earth oxides solvated in acid is an established and well recognised method for the validation of the wavelength scale of a spectrophotometer in the UV and visible regions. When prepared in sulphuric acid, this rare earth gives a spectral scan
containing a series of characteristic peaks that extend into the Far UV

region.
RM-RE: (see MSDS)
Consists of one sealed cell, with certified
peak at spectral bandpass values of
0.1nm, 0.2nm, 0.5nm, 1.0nm, 1.5nm, 2.0nm and 3.0nm.

Typical values obtained:

SBW	nm	nm	nm	nm	nm
0.10	201.14	211.14	222.92	240.00	253.56
0.25	201.16	211.96	222.82	240.44	253.80
0.50	200.98	212.00	222.86	240.26	253.58
1.00	201.44	211.72	223.02	240.48	253.74
1.50	201.34	211.96	222.86	240.38	253.58
2.00	201.34	212.00	223.02	240.72	253.52
3.00	201.34	211.96	222.86	240.72	253.64

All Starna® Far UV cells are filled under controlled conditions, the cells are then
permanently sealed by heat fusion and the values certified by the procedure described below.

Calibration procedure:
Traceability:
• Primary instrumental wavelength calibration is established using the emission lines from mercury and deuterium sources.
• Additional traceability links to NIST primary materials are established using SRM 2034 holmium oxide (4% m/v) in perchloric acid (10% v/v).
Use:
• All appropriate fundamental parameters and
procedures relating to measurement, handling and storage are fully documented on the certificate
supplied with each Certified Reference Material.

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Email:sales@starna.co.uk