User Guide

For an introduction to the application and use of Certified Reference Materials in absorption spectrophotometry

 
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PRODUCT ENQUIRY
 
 
userFURTHER PRODUCT INFORMATION 
& HOW TO ORDER

 

This Reference Material can be used to qualify the wavelength calibration, in the ultraviolet and visible regions of the spectrum (240 nm - 795 nm) of spectrophotometers with spectral bandwidths of 5 nm or less.

Holmium and didymium (neodymium & praseodymium) oxides in perchloric acid have been separately used for the validation of the wavelength scale of UV and visible spectrophotometers for many years. Now, these materials are available from Starna as a combined reference, providing useful peaks that are interference-free over its whole wavelength range from 240 to 795 nm. 

 

holmium and didymium

14 peaks are certified, with nominal values: 241, 287, 361, 416, 444, 482, 485, 522, 537, 575, 641, 732, 740 and 794 nm.

Holmium-and-Didymium

 

A Certificate of Calibration and Traceability and full instructions for use are provided with each Reference Material. Starna Scientific is accredited to both ISO 17034 (4001) as a Reference Material producer, and ISO/IEC 17025 (0659) as a Calibration Laboratory for optical reference measurements. Starna offers a Lifetime Guarantee on all its Reference Materials.