GFS Chemicals Inc. offers 3 different wavelength standards to verify that your instrument’s wavelength scale is accurate. The 3 that are offered are Holmium Oxide, Didymium Perchlorate, and Samarium Perchlorate. These standards come sealed in a 10mm quartz cuvette and are certified for 4 years and recertification is available.

Holmium Oxide

Item # 8340

Holmium Oxide is the traditional wavelength check with 14 peaks between 241nm and 640nm.

Didymium Perchlorate

Item #8378

Didymium Perchlorate offers 14 peaks between 298nm and 865nm. Didymium Perchlorate is a good option for those who are mainly checking in the Visible range and want to be able to check more points when compared to Holmium Oxide.

Samarium Oxide

Item #8379

Samarium Oxide has 13 peaks between 235nm and 479nm. This standard is for customers looking to check at a lower wavelength then what is available with Holmium Oxide.