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ICPMS daily performance check report, April 16, 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_000040755–000040869

Folder label: “ICPMS 4/16/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE07637 Sample Date/Time: Tuesday, April 16, 2002 10:56:40 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\AE07637.566 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 10.000 17.321 -0.000 -0.00526 66.27 ug/L > Sc-1 45 494347.476 3.156 494347.476 ug/L Cr 52 12776.767 0.590 0.009 0.46267 10.21 ug/L Cr 53 2739.774 2.673 0.004 1.84203 0.95 ug/L Mn 55 634692.414 0.734 1.282 41.79080 3.39 ug/L Ni 60 2597.731 3.974 0.005 1.06049 6.41 ug/L Cu 63 7543.871 0.777 0.015 1.39329 2.49 ug/L Cu 65 3326.642 1.611 0.006 1.16260 4.93 ug/L Zn 66 3569.403 1.303 0.031 1.73854 1.95 ug/L Zn 67 1036.736 3.214 0.009 2.84851 4.26 ug/L Zn 68 3639.765 3.242 0.033 2.51506 4.58 ug/L > Ge 72 96718.440 1.073 96718.440 ug/L As 75 575.592 24.845 0.006 0.27426 26.78 ug/L Se 77 269.981 12.098 0.002 0.91694 18.10 ug/L Se 82 141.003 10.005 0.000 0.16103 41.65 ug/L Ag 107 196.004 7.358 -0.000 -0.01821 7.72 ug/L Cd 111 945.923 4.216 -0.000 -0.04495 35.02 ug/L Cd 114 155.141 3.671 0.000 0.00178 62.06 ug/L > In 115 1324441.217 0.873 1324441.217 ug/L Sb 121 635.362 0.328 0.000 0.06714 0.64 ug/L Sb 123 473.454 3.662 0.000 0.06111 4.14 ug/L Ba 135 81466.241 1.247 0.046 30.52682 0.94 ug/L Ba 137 134703.745 1.241 0.076 28.56191 1.64 ug/L > Tb 159 1764496.912 0.486 1764496.912 ug/L Ho 165 1722819.579 2.190 0.000 ug/L Tl 205 1517.476 7.125 -0.000 -0.00699 70.00 ug/L Pb 208 4995.587 0.493 0.002 0.08465 1.51 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Sc-1 45 101.148 Cr 52 Cr 53 Mn 55

Sample ID: AE07637 Report Date/Time: Tuesday, April 16,2002 10:58:27 Page 1

NYC-WTC_000040796

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NYC-WTC_000040796Source: NYC Law Department, mirrored locally

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