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ICPMS daily performance check report, April 15, 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_000040648–000040698

Folder label: “ICPMS 4/15/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE07107 Sample Date/Time: Monday, April 15,2002 10:23:55 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\AE071 07.502 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 9.333 64.583 0.000 0.00177 869.15 ug/L Se-1 45 548223.481 3.323 548223.481 ug/L Cr 52 10891.968 3.387 0.004 0.21685 34.46 ug/L Cr 53 2853.477 3.368 0.003 1.50627 10.48 ug/L Mn 55 874171.901 1.095 1.593 56.35061 4.47 ug/L Ni 60 3024.534 3.219 0.005 1.22404 2.75 ug/L Cu 63 7969.909 3.859 0.014 1.31784 2.95 ug/L Cu 65 3497.375 2.685 0.006 1.18551 6.44 ug/L Zn 66 2691.759 2.641 0.020 1.11151 3.22 ug/L Zn 67 826.713 2.835 0.006 2.08233 4.15 ug/L Zn 68 3370.326 4.129 0.028 2.17005 3.24 ug/L > Ge 72 102999.722 2.043 102999.722 ug/L As 75 826.799 6.015 0.008 0.38904 7.53 ug/L Se 77 -266.321 37.442 -0.003 -0.92722 39.15 ug/L Se 82 171.003 • 2.680 0.001 0.24297 6.55 ug/L Ag 107 757.706 5.414 -0.000 -0.01658 20.46 ug/L Cd 111 1085.811 5.309 -0.000 -0.03987 49.61 ug/L Cd 114 222.950 6.372 0.000 0.01427 14.11 ug/L > In 115 1416939.251 0.316 1416939.251 ug/L Sb 121 850.048 1.387 0.001 0.08455 1.39 ug/L Sb 123 647.006 4.263 0.000 0.08605 4.21 ug/L Ba 135 88497.902 0.871 0.046 29.49567 1.33 ug/L Ba 137 157883.851 0.988 0.082 30.32743 1.10 ug/L > Tb 159 1931249.309 1.724 1931249.309 ug/L Ho 165 1967838.364 0.835 0.163 ug/L Tl 205 1839.538 5.080 -0.000 -0.01037 21.81 ug/L Pb 208 9731.456 1.061 0.004 0.21434 0.84 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 93.215 Cr 52 Cr 53 Mn 55

Sample ID: AE07107 Report Date/Time: Monday, April 15,2002 10:25:42 Page 1

NYC-WTC_000040677

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NYC-WTC_000040677Source: NYC Law Department, mirrored locally

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