Laserfiche WebLink
different than those in the ICV, and a readback of the highest calibration <br />standard. <br />These solutions provide verification that the calibration equations are <br />functioning properly throughout the analytical range of the instrument. During <br />sample analysis dilutions are made for analytes found at concentrations above <br />the highest calibration standard. No results aze taken from extrapolations <br />beyond the highest standard. <br />6. All standazds and solutions are NIST traceable and were used within their <br />recommended shelf life. <br />7. The samples were prepared and analyzed within the established hold times. <br />All in house quality control procedures were followed, as described below. <br />8. General quality control procedures. <br />^ A filter (method) blank and laboratory control sample were filtered, preserved <br />and prepared at the same time as the samples. There were not more than 20 <br />samples associated with each filtered blank and laboratory control sample. The <br />laboratory control sample was only prepazed for the selenium analysis. <br />^ The prepazation (method) blank associated with each batch was below the <br />practical quantitation limit for each requested analyte. <br />^ The laboratory control sample associated with the selenium batch was within <br />the acceptance limits. <br />^ All initial and continuing calibration blanks associated with this analytical batch <br />were below the practical quantitation limits for the requested analytes. <br />^ All initial and continuing calibration verifications associated with this analytical <br />batch were within the acceptance criteria for the requested analytes. This <br />indicates a valid calibration and stable instrument conditions. <br />^ The interference check samples associated with Method 200.8 were analyzed. <br />9. Matrix specific quality control procedures. <br />Per method requirements, matrix QC was performed for this analysis. Since a <br />sample from this order number was not the selected quality control (QC) sample, <br />matrix specific QC results are not included in this report. <br />10. It is a standard PA practice that samples for ICP-MS are analyzed at a dilution. <br />PA sample ID 0412129-1 required an additional dilution to bring selenium into the <br />analytical range of the ICP-MS. <br />2 <br />