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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: CCV CALBK Sample Date/Time: Wednesday, April 10, 2002 10:56:28 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\CCV CAL BK.440 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 8.000 33.072 -0.000 -0.00291 197.73 ug/L Se-1 45 510918.012 0.918 510918.012 ug/L Cr 52 6925.707 1.142 -0.000 -0.00925 107.56 ug/L Cr 53 948.726 5.982 0.000 0.13845 41.31 ug/L Mn 55 902.721 2.443 -0.003 -0.11712 0.99 ug/L NI 60 37.667 17.274 0.000 0.00457 62.03 ug/L Cu 63 213.671 3.045 -0.001 -0.08054 1.76 ug/L Cu 65 139.002 6.394 0.000 0.01757 19.90 ug/L Zn 66 711.702 3.940 -0.001 -0.04862 44.31 ug/L Zn 67 177.337 12.385 0,000 0.05365 133.70 ug/L Zn 68 525.687 8.710 -0.001 -0.05913 55.17 ug/L Ge 72 95820.333 1.129 95820.333 ug/L As 75 72.718 88.868 -0.002 -0.12238 27.03 ug/L Se 77 138.336 6.717 0.000 0.03719 169.82 ug/L Se 82 113.002 16.884 -0.001 -0.37600 22.18 ug/L Ag 107 146.003 13.903 -0.000 -0.05911 2.87 ug/L > in 115 1324999.161 2.022 1324999.161 ug/L Sb 121 63.668 3.627 0.000 0.00237 9.46 ug/L Sb 123 57.480 8.262 0.000 0.00391 20.49 ug/L Ba 135 45.334 19.018 -0.000 -0.00322 102.24 ug/L Ba 137 74.334 9.449 -0.000 -0.00104 132.92 ug/L Ho 165 1791014.568 0.296 0.134 ug/L Tb 159 1802646.065 0.775 1802646.065 ug/L TI 205 620.694 9.514 -0.000 -0.00802 27.22 ug/L Pb 208 1658.742 3.291 -0.000 -0.00758 26.28 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 90.819 Cr 52 Cr 53 Mn 55 NI 60 Cu 63

Sample ID: CCV CAL BK Report Date/Time: Wednesday, April 10, 2002 10:58:35 Page 1

NYC-WTC_000040495

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NYC-WTC_000040495Source: NYC Law Department, mirrored locally

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