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ICPMS daily performance check report, April 11, 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_000040598–000040646

Folder label: “ICPMS 4/11/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE06799 Sample Date/Time: Thursday, April 11, 2002 13:57:19 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\AE06799.478 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 10.000 60.000 -0.000 -0.00693 228.37 ug/L > Se-1 45 442015.812 1.619 442015.812 ug/L Cr 52 13619.333 2.007 0.015 0.85760 2.96 ug/L Cr 53 2458.024 2.367 0.005 2.04771 1.93 ug/L Mn 55 653262.524 2.991 1.474 49.29344 1.67 ug/L Ni 60 2218.293 2.190 0.005 1.12321 3.85 ug/L Cu 63 10311.283 2.317 0.023 2.17586 1.03 ug/L Cu 65 5094.479 2.481 0.011 2.24581 0.91 ug/L Zn 66 1951.896 5.030 0.015 0.83666 9.76 ug/L Zn 67 699.367 3.776 0.006 2.10878 2.32 ug/L Zn 68 2481.697 1.816 0.023 1.86362 4.78 ug/L > Ge 72 85498.124 2.028 85498.124 ug/L . As 75 627.670 1.657 0.007 0.35464 2.44 ug/L Se 77 291.008 5.401 0.002 1.38625 6.06 ug/L Se 82 139.669 12.242 0.001 0.26265 34.40 ug/L Ag 107 321.342 11.444 -0.001 -0.11695 2.85 ug/L Cd 111 838.358 5.662 -0.000 -0.03280 39.24 ug/L Cd 114 93.461 8.702 0.000 0.00539 26.35 ug/L > In 115 1184138.509 2.021 1184138.509 ug/L Sb 121 613.027 4.489 0.000 0.06570 6.78 ug/L Sb 123 490.529 3.723 0.000 0.07034 5.67 ug/L Ba 135 72078.048 1.680 0.044 30.51486 0.85 ug/L Ba 137 123378.119 2.408 0.075 30.33037 2.91 ug/L > Tb 159 1643641.416 1.160 1643641.416 ug/L Ho 165 1687313.347 0.816 0.066 ug/L TI 205 812.711 10.017 -0.000 -0.02613 14.68 ug/L Pb 208 3892.364 0.735 0.001 0.07583 1.71 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 93.165 Cr 52 Cr 53 Mn 55

Sample ID: AE06799 Report Date/Time: Thursday, April 11,2002 13:59:06 Page 1

NYC-WTC_000040627

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NYC-WTC_000040627Source: NYC Law Department, mirrored locally

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