| Starna Certified Reference Materials |  |
| Photometric
Accuracy Potassium Dichromate Neutral Density Filters Nicotinic acid - UV Resolution/Bandwidth Toluene in Hexane Benzene Vapor WavelengthReferences Holmium Oxide Holmium Glass Didymium - UV Samarium - UV Didymiun Glass filter Rare Earth Oxide |
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Introduction
UV and Visible Spectrophotometry is one of the most common techniques used in analytical science. Procedures using this methodology are found in analytical, clinical and research laboratories, and find extensive use in a Quality Assurance environment. The technique is fundamentally both accurate and precise, but it is essential to check instrument performance on a regular basis to ensure that it is within satisfactory parameters i.e. “under control”, and to allow for corrective action to be taken when found to be outside these limits.
With an increasing requirement for laboratories to be accredited to at least one of the internationally recognised standards of GLP, ISO 17025 or ISO 9000, this “evidence of control” has become an absolute necessity. As has the use of Certified Reference Materials with a defined traceable path to national or internationally recognised primary materials or procedures.
Optiglass has over thirty years experience in the development and production of Starna® liquid-filled, heat sealed quartz cells which possess the good long-term stability and optical properties needed to evaluate performance of UV-Visible spectrophotometers. The range also includes solid glass filter materials for both absorbance and wavelength measurements. The full range of Certified Reference Materials established traceable to the USA National Institute of Standards and Technology (NIST) are described in detail on this web site, together with the necessary information for ordering set's to meet your exact requirements.
The ability to customise your requirements is unique to Starna® , and allows for the compilation of a certified set from available reference materials.
Qualification of the reference spectrophotometer is consistent with the most exacting requirements of any regulated environment, and is documented as appropriate on each supplied certificate. In addition to the measured values, certificates also detail how to use, clean, and store the Certified Reference Material.
To ensure the on-going quality of the calibration validation process, recertification of these Certified Reference Materials is an essential requirement, and this process is also documented on this web site.
Stored, handled, and used correctly Starna® Certified Reference Materials have a long working life in providing that essential evidence of control for your spectrophotometer (see MSDS)
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Reference
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