Category Archive: Reference materials

Apr 20

Transplant care: ensuring consistency across the globe

Reference materials (RMs) are the cornerstone of accurate and traceable measurements – they are measurement standards which can be used to validate analytical methods, establish traceability and support quality control. A month ahead of World Metrology Day, we look at the use of our certified reference materials (CRMs, reference materials with evidence of metrological traceability …

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Mar 15

Nitrate in infants’ vegetable food

Nitrate is a natural contaminant present mainly in vegetables and drinking water although it is frequently added as a preservative in processed meat products. Plants utilise nitrogen from the environment as part of the nitrate cycle, for their metabolism and to produce protein. Any excess quantity of nitrate is stored mainly in green leaves.  In …

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Mar 13

Are your assay values below specification?

“The result I’ve found for the assay value in my API or finished dosage form is below my specification. Is there a problem with my reference standard?” is a question often asked by users of pharmaceutical reference materials. Some may even assume that there has been some degradation with the reference material they have applied. …

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Nov 15

Underpinning measurements: written standards

Reference materials are a type of measurement standard used to validate analytical methods, establish traceability and support quality control. They are particularly important for analytical chemistry and clinical analysis as most analytical instrumentation is comparative so samples of known composition (reference materials) are needed to ensure accurate calibration. A reference material (RMs) can either be …

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