Different analytical methods have different detection capabilities and applicable matrices. The methodId on an AnalyticalResult records which standard laboratory method was used for the measurement. This matters for compliance because some permits specify which methods are acceptable for reporting, and detectionLimit values vary by method. When auditing results, the methodId lets compliance staff confirm that the laboratory used a permit-approved method for each analyte in the SamplingEvent.
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Analytical Result Method
The `methodId` on an AnalyticalResult identifies the analytical method the laboratory used to quantify the analyte concentration.