User Guide

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





This reference uses Starna’s glass filter Certified Reference Materials for the qualification of 96-well plate readers. Full details, spectra, etc of the individual reference materials may be found in the appropriate Starna data sheets.

The reference contains six Starna NIST traceable glass filter CRMs in a black anodised aluminium microplate, manufactured to the Society of Biomolecular Screening (SBS) dimensional standards.

For absorbance verification, neutral density filters are used, and holmium oxide glass for wavelength. Absorbance values are certified at 440, 465, 546.1, 590 and 635nm for the neutral density filters, and values range from 0.5 A to 2 A. The holmium filter has 11 certified peak values between 240 nm to 640 nm.




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.