Reference materials and analytical quality control
Produce recognized and credible analysis results
Analysis results are produced by following an analysis protocol or method. Regardless of the type of analysis performed; the inclusion of a standard or a reference material or the performance of duplicate analyzes give credibility to your analyzes.
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Producing analyzes for which you measure the concentration of an analyte without a calibration curve or control would not be useful especially if you want your results to be recognized by the regulatory authority , audit firms or even by your customers .
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This is why the use of reference materials and the insertion of minimum quality control elements are essential tools in order to carry out analyzes whose results will be credible and recognized.
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Use the right tools and perform the necessary checks
So what are these necessary tools and controls?
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Here are the main ones :
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Inclusion of a method blank
The inclusion of a control which does not contain the analyte to be measured
Analysis of duplicate samples
Inclusion of reference materials or internal standards
Using a calibration curve
... And the list is still long
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It is also possible that internal or external control samples may be included depending on the type of analysis and the requirements to be met. You can also include samples taken and prepared by your internal teams without analysts knowing exactly what it is.
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When using a device or machine which has its own calibration procedure; it is important to use a reference material or a standard in order to validate everything. It can be standard or an official, standardized reference material that you buy commercially or that you have prepared yourself .
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How often should these checks be carried out?
The quality control elements can be adjusted according to:
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The number of samples analyzed
The type of analysis carried out
The type of machine or device used
Regulatory, normative or customer compliance requirements
Etc.
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In all cases , there is a minimum of element to include to produce credible and recognized results.
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We are able to advise you with the use or preparation of reference materials as well as the inclusion of quality control elements so that you can produce credible and recognized results. This will facilitate the exchange of analysis results with representatives of the regulatory authority , audit firms and clients . It will also allow you to produce more reliable results that can be used to assess your performance or the compliance of your products . You can also use these controls to justify your results are solid tangible proofs that can be used for the resolution of DACs / non-conformities or during disputes .
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