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Certified Reference Materials for Spectrophotometers in the UV/VIS to Mid-IR Spectrum


Certified Reference Materials are a lab essential for any spectroscopy experiment. They are necessary for all laboratory experiments that involve instrument qualification for laboratory or analytical uses. These certified reference materials are also necessary for performance evaluation of any laboratory equipment. High quality certified reference materials become a pre-requisite for laboratory applications, as the accuracy and precision of all experiments and test results performed with these devices is directly tied to the quality of the material being used as reference.


Benefits of Certified Reference Materials in the UV/VIS to Mid-IR spectrum

High quality certified reference materials are constructed with great importance to precision, so they conform to all the industrial standards and requirements. The manufacturing is performed under highly monitored and controlled conditions. They are further calibrated with perfect precision, so they meet all the necessary standards and norms. International regulatory bodies like the National Meteorological Institutes set the regulatory standards to determine the quality of these materials and determine the testing they should be subjected to.

The universally recognized standard for laboratory accreditation of spectrophotometer reference materials is set by the NIST and known as the ISO/IEC 17025. Their list of criteria are closely linked to both fundamental physical standards and international primary standards. A Certified Reference Material should ideally satisfy all these criteria to be deemed fit for use.

Uses of Certified Reference Materials

One of the main uses of CRM's is in instrument qualification kits. The standardised setup is used to determine the accuracy and calibrate a spectrophotometer for higher precision operation. These are used in measurements of wavelength, photometric accuracy, wavelength calibration and instrument resolution or bandwidth.

Apart from solid references, liquid reference materials should also undergo extensive testing. These references are sealed in their cells with innovative manufacturing processes that eliminate chances of evaporation or change in stability. Thus they can be efficiently and safely handled for laboratory applications.

Hellma Certified Reference Materials are accompanied by extensive documentation that supports their scope of use. This also includes details of their test conditions and how they operate in practical situations. Calibration laboratories also issue timely retesting requirements, which the device should ideally be subjected to. The reference material will have to be shipped to the testing laboratory where it will be subjected to testing once again, and the laboratory will certify whether it is fit for continued use. This is a task that takes no more than a week and will ensure the quality of the material continues to be high.

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