SU0012870 SSNL - Laserfiche WebLink

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EXPLANATION OF TERMS BLANK QA/QC - Analyte free sample analyzed to determine if background contamination is present in any instrument or techniques used for analysis. TYPES DLR => Detection Limit for Reporting purposes. MDL => Method Detection Limit. This number represents the smallest non-zero value that FGL can reproduce For a method. The DLR must be greater than or equal to the MDL. CALIBRATION QA/QC - Standard analyzed to determine the Accuracy of any instruments and/or techniques used for analysis. TYPES ICV => Independent Calibration Verification standard. Analyzed to check the accuracy of the standard used to calibrate an instrument or technique. CCV => Continuing Calibration Verification standard. Analyzed to check the accuracy of the instrument or technique calibration. LCS => Laboratory Control Standard. Analyzed to check the accuracy of the entire method from prep thru analysis. DLS => Detection Level Standard. Used for verification and determination of MDL. METHOD QA/QC - Matrix specific samples analyzed to determine accuracy and/or precision of the entire method. x TYPES Dup => Samples are prepared and analyzed in Duplicate to determine the Precision of the method. The RPD or Relative Percent Difference is calculated and tri �-3 compared to the MAV for all constituents. rn BS => Blank Spike / Blank Spike Duplicate. A Laboratory Blank matrix is Spiked with a known amount of analyte then prepared and analyzed along with a batch of samples. MS => Matrix Spike / Matrix Spike Duplicate. A Client provided matrix is Spiked with a known amount of analyte then prepared and analyzed along with a batch of samples. CALCULATIONS REC => Percent Recovery of an analyte introduced (spiked) at a know level (Concentration). % REC should be within the AR. AR => Acceptance range of the % REC for an analyte. The AR is determined by averaging all % REC data for a specific matrix and then calculating the 95 % confidence interval. DIF => (Relative) Percent Difference of a sample analyzed in duplicate. % DIF should be <= MAV. MAV => Maximum Acceptance Value for the % DIF of an analyte. The MAV is determined by averaging all % DIF data for a specific matrix and then calculating the 95 % confidence interval. Conc. => The theoretical amnount of analyte present in the sample prior to analysis. ♦ => Indicates a special or modified DLR was applied for the acceptance criteria. => Indicates the average concentration spiked for MS/MSD or BS/BSD when the concentration spiked was not identical for both QC samples.