Analytical Result Detection Limit

The detectionLimit on an AnalyticalResult defines the floor of the laboratory method's sensitivity. When isNonDetect is true, the actual concentration in the sample is somewhere between zero and the detectionLimit. This value matters for compliance: if the detectionLimit itself is higher than the applicable ThresholdValue for a given analyte, regulators may consider the monitoring inadequate — the lab cannot confirm the analyte is below the standard even if it reports a non-detect. Compliance staff should verify that detectionLimit values are well below the ThresholdValue for each analyte of concern.