Internal Standard Mixture|ISO Guide 34 Reference Standards Supplied by Greyhound Chromatography

With the advancements in technology and the ever greater demands from regulatory bodies to identify new analytes and the lowering of detection limits, Greyhound recognises the importance of supplying Certified Reference Materials with validated and stated uncertainties. Scientists are under increasing pressure to produce accurate reports using the technologies currently available to them and to minimise random and systematic errors in their procedures. European and other accrediting bodies including the United Kingdom Accreditation Service (UKAS), specify the use of ISO Guide 34 Certified Reference Materials under certain circumstances. In the absence of ISO Guide 34 Certified Standards, scientists assume the laborious, time consuming task of calculating and documenting the uncertainties associated with the calibration standards they use. The ISO Guide 34 Certified Reference Materials offered by Greyhound have their major components of uncertainty identified and documented, including homogeneity, short and long term stabilities and the uncertainty due to analytical characterisation.

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