BENZODIAZEPINES- CONFIRMATION, URINE

Reference values Modification

Test code: 2768

Effective update from 25/05/2017

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Negative: Less than 150 ng/mL             * Recommended for reliability in detecting drugs of abuse in urine within the scope of the European Union, especially applicable in the workplace (December 1996). REV. Toxicol. (1997) 14: 16-21.       LOD: Less than 20 ng/mL

Alprazolam: Cut-off: 25 ng/mL Measuring uncertainty: 5 ng/mL Clonazepam: Cut-off: 25 ng/mL Measuring uncertainty: 5 ng/mL Diazepam: Cut-off: 25 ng/mL Measuring uncertainty: 5 ng/mL Flunitrazepam: Cut-off: 25 ng/mL Measuring uncertainty: 5 ng/mL Lorazepam: Cut-off: 25 ng/mL Measuring uncertainty: 5 ng/mL Nordiazepam: Cut-off: 25 ng/mL Measuring uncertainty: 5 ng/mL Oxacepam: Cut-off: 25 ng/mL Measuring uncertainty: 5 ng/mL 7-amino-clonazepam: Cut-off: 25 ng/mL Measuring uncertainty: 5 ng/mL 7-amino-flunitrazepam: Cut-off: 25 ng/mL Measuring uncertainty: 5 ng/mL In the received sample all of the indicated substances have been analyzed. The following positivity criterion has been used: when the concentration of the substances is over or equal the cut-off value plus the value of test uncertainty, the result is Positive. In opposite case the result is Negative. The laboratory has a measurement uncertainty across the entire working range.

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