Sample Storage Pre-analysis

Depending on the nature of the sample and the analytes to be tested for, different conditions of storage must be observed. Whatever the storage temperature chosen, it should be suitable for maintaining the integrity of the sample and the parameters to be measured. Ambient 

All reports should generally be checked independently by (ideally) two suitably qualified staff members. The laboratory should implement a policy regarding the provision of opinions and interpretation of data. The basis on which an opinion has been stated must be documented. An opinion or interpretation may include, but not be limited to, recommendations on how to use results, or information related to the pharmacology, metabolism, and pharmacokinetics of a substance. This is particularly important for classes of compounds for which the client/authority may not be aware of the latest developments or recent knowledge in the field, as is often the case, for instance, for natural hormones such as boldenone and nandrolone in breeding animals, compounds newly discovered to be naturally occurring such as thiouracil, and marker residues that may be unreliable such as semicarbazide as a marker for nitrofurazone abuse. ° 

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