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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: AE07485 Sample Date/Time: Wednesday, April 10,2002 10:29:40 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07485.432 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 11.333 25.471 0.000 0.00435 135.22 ug/L Se-1 45 505248.392 2.037 505248.392 ug/L Cr 52 9331.881 0.548 0.005 0.25869 7.04 ug/L Cr 53 1202.425 4.295 0.001 0.37950 6.51 ug/L Mn 55 249556.968 1.010 0.489 16.60848 2.99 ug/L Ni 60 764.707 5.052 0.001 0.31779 6.51 ug/L Cu 63 5210.878 0.702 0.009 0.85486 2.28 ug/L Cu 65 2558.386 1.538 0.005 0.94529 3.22 ug/L Zn 66 1510.474 1.136 0.007 0.40873 3.52 ug/L Zn 67 461.683 6.066 0.003 0.98039 8.48 ug/L Zn 68 1751.186 0.743 0.012 0.90772 2.14 ug/L > Ge 72 98439.443 0.965 98439.443 ug/L As 75 1126.541 3.950 0.008 0.41108 4.34 ug/L Se 77 184.004 13.587 0,000 0.29018 53.56 ug/L Se 82 240.339 10.821 0.000 0.18135 58.75 ug/L Ag 107 714.369 4.930 -0.000 -0.00815 43.73 ug/L In 115 1367475.371 0.803 1367475.371 ug/L Sb 121 711.702 3.595 0.000 0.07214 3.05 ug/L Sb 123 570.461 2.960 0.000 0.07499 3.53 ug/L Ba 135 42544.415 0.882 0.023 15.34822 0.83 ug/L Ba 137 74194.948 0.441 0.040 15.35848 0.64 ug/L Ho 165 1834670.646 0.294 0.131 ug/L > Tb 159 1851692.510 0.307 1851692.510 ug/L n 205 675.365 3.727 -0.000 -0.00653 14.76 ug/L Pb 208 3027.226 1.362 0.001 0.03072 3.55 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 89.811 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: AE07485 Report Date/Time: Wednesday, April 10, 2002 10:31:15 Page 1

NYC-WTC_000040479

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NYC-WTC_000040479Source: NYC Law Department, mirrored locally

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