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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: AE06982 Sample Date/Time: Thursday, April 11, 2002 14:04:12 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\AE06982.480 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 11.000 9.091 -0.000 -0.00552 47.50 ug/L > Se-1 45 458724.040 0.509 458724.040 ug/L Cr 52 7134.205 3.044 0.000 0.00826 321.72 ug/L Cr 53 1383.452 2.448 0.002 0.89281 4.54 ug/L Mn 55 215707.891 2.795 0.466 15.59450 2.32 ug/L Ni 60 653.363 1.169 0.001 0.29964 1.47 ug/L Cu 63 16667.105 2.583 0.036 3.41650 2.51 ug/L Cu 65 8009.274 1.211 0.017 3.43246 0.74 ug/L Zn 66 4446.465 2.039 0.041 2.36084 5.19 ug/L Zn 67 .880.385 7.566 0.008 2.63652 7.31 ug/L Zn 68 3542.394 6.197 0.033 2.70798 9.57 ug/L > Ge 72 89991.614 2.350 89991.614 ug/L As 75 495.302 3.295 0.005 0.26015 1.59 ug/L Se 77 164.003 4.604 0.001 0.45893 15.89 ug/L Se 82 118.335 0.488 0.000 0.11585 13.08 ug/L Ag 107 331.343 10.012 -0.001 -0.11615 4.05 ug/L Cd 111 861.563 1.566 -0.000 -0.02702 49.60 ug/L Cd 114 120.312 6.170 0.000 0.00992 15.00 ug/L In 115 1198727.842 3.259 1198727.842 ug/L Sb 121 451.682 3.681 0.000 0.04548 7.25 ug/L Sb 123 316.864 3.009 0.000 0.04150 5.70 ug/L Ba 135 37403.904 3.807 0.022 15.22493 2.96 ug/L Ba 137 64724.957 1.824 0.038 15.30032 2.65 ug/L > Tb 159 1708096.314 0.967 1708096.314 ug/L Ho 165 1617668.293 0.936 -0.013 ug/L Tl 205 887.719 5.183 -0.000 -0.02427 7.24 ug/L Pb 208 3825.022 1.992 0.001 0.06875 2.33 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 96.687 Cr 52 Cr 53 Mn 55

Sample ID: AE06982 Report Date/Time: Thursday, April 11,2002 14:05:59 Pages 1

NYC-WTC_000040631

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NYC-WTC_000040631Source: NYC Law Department, mirrored locally

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