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General Reporting Notes – Data Qualifiers <br /> <br /> <br />EU116_v8 (General Reporting Notes-Data Qualifiers) Enthalpy Analytical, LLC – Wilmington, NC <br /> LOQ – Limit of Quantitation: For reports conforming to the DOD ELAP QSM, this is the QSM- <br />defined LOQ. For reports conforming to TNI requirements (but not DOD ELAP QSM <br />requirements), this value is the reporting limit (RL). The LOQ is adjusted for sample weight or <br />volume. <br /> <LOD() – Analyte was not found at a concentration high enough to be reported as detected. It is <br />reported as less than the LOD, and the LOD is given in the parentheses. <br /> <LOQ() – Analyte was not found at a concentration high enough to be reported as above the <br />QSM-defined LOQ or TNI defined Reporting Limit. It is reported as less than the LOQ, and the <br />LOQ is given in the parentheses. <br /> ND – Indicates a non-detect. <br /> NR – Indicates a value that is not reportable due to issues observed in sample preparation or <br />analysis. <br /> PR – The associated congener(s) is(are) poorly resolved. <br /> QI – Indicates the presence of a quantitative interference. <br /> RL – Reporting Limit. Lowest reportable value. The level is higher than the MDL. <br /> SI – Denotes “Single Ion Mode” and is utilized for PCBs where the secondary ion trace has a <br />significantly elevated noise level due to background PFK. Responses for such peaks are <br />calculated using an EMPC approach based solely on the primary ion area(s) and may be <br />considered estimates. <br /> U – The analyte was not detected. <br /> V / Q – The labeled standard recovery is not within method control limits. <br /> X – Indicates the result is from re-injection/repeat/second-column analysis. <br />Lab Identifiers/ Data Attributes <br /> AR – Indicates use of the archived portion of the sample extract. <br /> CU – Indicates a sample that required additional clean-up prior to HRMS injection/processing. <br /> D – Dilution Data. Result was obtained from the analysis of a dilution. The number that follows <br />the “D” indicates the dilution factor. <br /> DE – Indicates a dilution performed with the addition of ES (Extraction Standard) solution. <br /> DUP – Designation for a duplicate sample. <br /> MS – Designation for a matrix spike. <br /> MSD – Designation for a matrix spike duplicate. <br />EU 0824-1274 Page 6 of 20 79 of 95