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Reference pattern-based solutions
A retraceability solely based on reference samples excludes some of the advantages of a database and inherits a greater risk. However there are areas in which this system represents the best solution.
The risk lies in the absence of known reference samples from the laboratory for which of course no isotope values results are available yet. Hence it is mandatory to ensure that the required reference samples of suitable quality can be sent to the laboratory immediately. Factors like poorly validated documentation an labeling, poor stock keeping, deteriorated samples, missing reference samples, lack of time, wrong packaging prior to shipping etc. may lead to the problem that the needed reference samples do not arrive at the laboratory at all, very late, become useless during the transfer or are received without adequate documentation.
In some cases, an enterprise is able to accept this risk at own stake an minimize it by suitable measures actively.
If wished, Agroisolab will check to what extent storing reference samples can be conducted for the customer and issues a corresponding offer.
The clearest benefit of a solution based on reference samples is given by lower initial costs because tests are only performed if needed.
A solution based on reference samples is indicated for cases that
- do not allow a longer term usage of the reference samples (periodical updates required);
- a reliable and rapid reference sample acquisition is possible;
- the usage of the analytic capabilities occurs only rarely (e.g. as a pure precaution for an emergency case);
- retracing of complete batches is wished.
