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ICPMS daily performance check report, April 9, 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_000040287–000040339

Folder label: “ICPMS 4/9/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: ICV CAL BK Sample Date/Time: Tuesday, April 09, 2002 10:09:31 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\ICV CAL BK.341 Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results Analyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Conc. Mean 'Conc. RSD Sample Unit Be 9 11.333 35.660 -0.000 -0.00171 532.73 ug/L Sc-1 45 575850.002 2.356 575850.002 ug/L Cr 52 8484.710 1.547 -0.000 -0.01026 192.17 ug/L Cr 53 656.697 1.525 -0.000 -0.16589 9.50 ug/L Mn 55 1582.820 3.750 -0.000 -0.00459 80.98 ug/L Ni 60 57.667 2.649 0.000 0.00334 27.15 ug/L Cu 63 268.340 4.600 -0.000 -0.00058 525.94 ug/L Cu 65 161.670 10.932 0.000 0.00752 78.30 ug/L Zn 66 495.018 2.128 0.000 0.00241 172.09 ug/L Zn 67 105.668 6.158 -0.000 -0.09506 18.37 ug/L Zn 68 382.345 9.933 -0.000 -0.00651 389.85 ug/L Ge 72 107839.942 0.718 107839.942 ug/L As 75 273.135 26.425 -0.000 -0.02111 156.10 ug/L Se 77 140.336 2.880 -0.000 -0.05170 34.27 ug/L Se 82 207.671 1.691 -0.000 -0.03399 45.05 ug/L Ag 107 2121.937 8.296 0.000 0.05581 23.81 ug/L In 115 1535320.761 0.528 1535320.761 ug/L Sb 121 94.001 3.192 0.000 0.00460 6.64 ug/L Sb 123 70.348 15.882 0.000 0.00360 38.45 ug/L Ba 135 83.335 8.514 0.000 0.00276 76.19 ug/L Ba 137 138.336 7.524 0.000 0.00245 72.41 ug/L Ho 165 1761886.439 0.418 -0.003 ug/L Th 159 2035624.357 0.981 2035624.357 ug/L 11 205 642.029 5.389 -0.000 -0.00338 38.26 ug/L Pb 208 1957.102 3.907 -0.000 -0.0026 80.75 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rel. % Diff I Be 9 > Sc-1 45 98.972 Cr 52 Cr 53 Mn 55 NI 60 Cu 63

Sample ID: lCV CAL BK Report Date/Time: Tuesday, April 09, 2002 10:11:42 Page 1

NYC-WTC 000040294

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NYC-WTC_000040294Source: NYC Law Department, mirrored locally

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