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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: LRB Sample Date/Time: Thursday, April 11, 2002 13:22:13 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\LRB.472 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 6.333 24.119 -0.000 -0.01735 20.25 ug/L > Se-1 45 463215.257 2.438 463215.257 ug/L Cr 52 6935.047 1.836 -0.000 -0.02349 151.20 ug/L Cr 53 413.014 5.585 -0.000 -0.07115 38.67 ug/L Mn 55 1636.497 6.357 -0.000 -0.01394 34.01 ug/L Ni 60 168.338 128.974 0.000 0.05831 189.68 ug/L Cu 63 234.672 3.624 -0.000 -0.00079 212.50 ug/L Cu 65 122.669 10.825 -0.000 -0.00538 130.07 ug/L Zn 66 703.368 4.328 -0.000 -0.02315 111.56 ug/L Zn 67 155.336 8.402 -0.000 -0.01767 322.07 ug/L Zn 68 524.020 5.574 -0.000 -0.02677 105.55 ug/L Ge 72 89797.960 1.628 89797.960 ug/L As 75 67.669 96.282 0.000 0.01603 228.68 ug/L Se 77 95.668 9.012 0.000 0.01323 434.95 ug/L Se 82 100.002 9.539 0.000 0.02255 206.51 ug/L Ag 107 1065.407 9.846 -0.000 -0.04093 24.27 ug/L Cd 111 877.548 5.276 -0.000 -0.03257 48.13 ug/L Cd 114 68.928 9.623 0.000 0.00050 219.68 ug/L > In 115 1239013.528 1.346 1239013.528 ug/L Sb 121 53.001 6.803 -0.000 -0.00255 13.27 ug/L Sb 123 42.892 23.132 -0.000 -0.00271 59.64 ug/L Ba 135 60.334 9.129 0.000 0.00382 49.14 ug/L Ba 137 90.001 12.222 -0.000 -0.00041 758.17 ug/L > Tb 159 1663682.593 1.835 1663682.593 ug/L Ho 165 1676473.605 2.789 0.048 ug/L TI 205 1045.404 3.445 -0.000 -0.01619 6.94 ug/L Pb 208 1676.075 3.012 0.000 0.00116 170.18 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Se-1 45 97.633 Cr 52 Cr 53 Mn 55

Sample ID: LRB Report Date/Time: Thursday, April 11,2002 13:24:32 Page 1

NYC-WTC_000040615

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NYC-WTC_000040615Source: NYC Law Department, mirrored locally

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