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ICPMS daily performance check report, April 10, 2002

Machine-extracted title · confidence 95%

Daily instrument performance verification log for ICPMS analysis including intensity and standard deviation data for multiple elements.

NYC-WTC_000040452–000040596

Folder label: “ICPMS 4/10/02”

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE07766 Sample Date/Time: Wednesday, April 10, 200212:23:55 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07766.459 Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results Analyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Cone. Mean Cone. RSD Sample Unit Be 9 7.667 49.382 -0.000 -0.00186 453.10 ug/L > Se-1 45 456574.771 2.615 456574.771 ug/L Cr 52 9611.175 1.947 0.007 0.39986 12.18 ug/L Cr 53 1034.403 8.484 0.001 0.32887 34.33 ug/L Mn 55 219979.568 2.030 0.477 16.19665 3.15 ug/L Ni 60 731.703 3.461 0.002 0.33728 5.87 ug/L Cu 63 5020.103 2.982 0.010 0.91911 2.42 ug/L Cu 65 2467.693 0.248 0.005 1.01143 2.72 ug/L Zn 66 1012.733 2.617 0.003 0.17117 11.54 ug/L Zn 67 371.011 0.467 0.002 0.79312 2.03 ug/L Zn 68 1271.768 0.948 0.008 0.61825 1.29 ug/L Ge 72 90161.506 1.280 90161.506 ug/L As 75 916.608 4.925 0.007 0.34750 7.77 ug/L Se 77 176.670 13.109 0.001 0.34439 47.19 ug/L Se 82 160.670 10.309 -0.000 -0.10855 84.10 ug/L Ag 107 284.341 9.825 -0.000 -0.04434 6.03 ug/L in 115 1238021.175 0.466 1238021.175 ug/L Sb 121 592.359 7.479 0.000 0.06596 8.43 ug/L Sb 123 467.400 9.588 0.000 0.06746 10.55 ug/L Ba 135 40679.888 0.550 0.024 15.81214 0.82 ug/L Ba 137 70993.859 1.114 0.041 15.83424 1.60 ug/L Ho 165 1701495.502 1.039 0.130 ug/L Tb 159 1718694.593 0.489 1718694.593 ug/L TI 205 556.356 5.512 -0.000 -0.00951 14.73 ug/L Pb 208 2712.853 1.818 0.001 0.02770 4.91 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Sc-1 45 81.159 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: AE07766 Report Date/Time: Wednesday, April 10, 2002 12:25:30 Page 1

NYC-WTC_000040533

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NYC-WTC_000040533Source: NYC Law Department, mirrored locally

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