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ICPMS daily performance check report, April 22, 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_000040871–000040923

Folder label: “ICPMS 4/22/01

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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 CAL BK Sample Date/Time: Monday, April 22, 2002 13:29:19 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.514 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 8.667 24.019 -0.000 -0.01523 43.53 ug/L > Se-1 45 485366.900 1.180 485366.900 ug/L Cr 52 7467.475 2.149 -0.001 -0.05487 50.41 ug/L Cr 53 827.713 0.488 0.000 0.00116 991.47 ug/L Mn 55 1153.752 5.348 -0.002 -0.05685 7.57 ug/L Ni 60 224.338 7.383 -0.000 -0.00127 480.36 ug/L Cu 63 402.013 2.691 -0.000 -0.01779 13.61 ug/L Cu 65 222.005 1.192 -0.000 . -0.01339 14.97 ug/L Zn 66 639.029 5.415 -0.001 -0.03504 70.76 ug/L Zn 67 147.003 3.117 -0.000 -0.02313 68.54 ug/L Zn 68 476.351 2.388 -0.001 -0.05702 9.68 ug/L > Ge 72 94375.442 2.251 94375.442 ug/L As 75 39.852 141.949 -0.000 -0.01626 181.82 ug/L Se 77 132.141 3.658 0.000 0.00180 2042.71 ug/L Se 82 106.002 12.480 0.000 0.01016 702.60 ug/L Ag 107 172.670 2.034 -0.000 -0.04085 0.27 ug/L In 115 1308973.114 1.429 1308973.114 ug/L Sb 121 64.001 8.268 0.000 0.00227 28.19 ug/L Sb 123 59.274 13.225 0.000 0.00407 25.76 ug/L Ba 135 70.668 13.148 -0.000 -0.00085 386.28 ug/L Ba 137 134.002 12.330 0.000 0.00468 76.80 ug/L Ho 165 1800867.491 2.935 0.003 ug/L Tb 159 1811793.210 1.495 1811793.210 ug/L Hg 201 61.334 6.173 -0.000 -0.00654 59.83 ug/L Hg 202 120.669 2.910 -0.000 -0.00547 15.76 ug/L TI 205 828.046 2.425 -0.000 -0.01060 , 10.37 ug/L Pb 208 1965.435 1.847 0.000 0.00077 241.98 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Se-1 45 114.370 Cr 52 Cr 53 Mn 55

Sample ID: CCV CAL BK Report Date/Time: Monday, April 22, 2002 13:31:36 Page 1

NYC-WTC_000040918

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NYC-WTC_000040918Source: NYC Law Department, mirrored locally

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