Holmium glass filter (279 - 638 nm)

for checking the wavelength accuracy

The holmium glass filter 666-F1 has a range of narrow, well defined peaks in the UV and visible range, making holmium an excellent choice for checking the wavelength scale of spectrophotometers. In comparison to filters that use holmium solution (Holmium liquid filter), the holmium glass filter has a weaker spectrum with fewer peaks. In the low UV range the absorbance behavior of the glass matrix is superimposed on the holmium peaks. The main advantage of using a glass filter over a liquid filter is that it is more robust.

Typical spectrum of a holmium glass filter, measured with a slit width of 1 nm.

 

ARTICLE-NO. 666F1-339    Request this article
APPLICATION Checking the wavelength accuracy in the UV and Vis range
CONTENT Holmium glass with metal frame
STANDARD CERTIFICATION Wavelengths: 279, 361, 453, 536, 638 nm
Slit width: 1 nm; with DAkkS calibration certificate
POSSIBLE CERTIFICATION Wavelengths: 279, 287, 361, 418, 445, 453, 460, 536, 638 nm
Slit width: all up to 2 nm

 

Note

The positions of holmium peaks may vary slightly depending on the glass batch used. This is why Hellma Analytics certifies each holmium glass filter individually.

Reference Materials (Brochure & User Manual EN)

Download


Contact/Inquiry

Hellma USA Inc.
80 Skyline Drive
11803 Plainview, NY
United States

Phone: +1 516 939 0888
info.us@hellma.com
http://www.hellmausa.com

Contact/Inquiry

Note: Your data will of course be treated confidentially and will not be shared with third parties. You can revoke your consent at any time by clicking on the end of each e-mail.
Required Field