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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: AE08425 Sample Date/Time: Tuesday, April 16,2002 14:55:19 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\AE08425.588 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 30.000 -0.000 -0.00558 125.61 ug/L Se-1 45 501277.186 0.958 501277.186 ug/L Cr 52 12336.491 2.189 0.008 0.39764 9.80 ug/L Cr 53 1029.069 4.717 0.001 0.30714 13.61 ug/L Mn 55 224198.595 2.139 0.445 14.49917 3.09 ug/L Ni 60 869.050 3.204 0.002 0.33680 4.19 ug/L Cu 63 6630.151 2.453 0.013 1.20005 1.76 ug/L Cu 65 3272.956 3.698 0.006 1.12554 4.69 ug/L Zn 66 3448.022 3.868 0.030 1.66910 3.77 ug/L Zn 67 804.044 3.620 0.007 2.11369 5.66 ug/L Zn 68 3035.204 2.897 0.027 2.04552 4.93 ug/L > Ge 72 96702.300 1.434 96702.300 ug/L As 75 554.180 10.324 0.006 0.26353 12.29 ug/L Se 77 154.659 4.731 0.001 0.28522 11.93 ug/L Se 82 142.336 1.463 0.000 0.16712 8.99 ug/L Ag 107 3900.570 22.358 0.003 0.32214 23.04 ug/L Cd 111 975.427 6.159 -0.000 -0.02918 82.03 ug/L Cd 114 183.241 4.313 0.000 0.00669 26.17 ug/L > In 115 1306154.058 1.639 1306154.058 ug/L Sb 121 476.351 4.563 0.000 0.04998 3.25 ug/L Sb 123 376.200 3.325 0.000 0.04816 . 3.27 ug/L Ba 135 42781.894 2.373 0.024 15.93869 2.22 ug/L Ba 137 72859.894 1.226 0.041 15.36109 1.47 ug/L Tb 159 1773588.204 0.690 1773588.204 ug/L Ho 165 1721569.039 2.196 -0.006 ug/L TI 205 1445.463 1.661 -0.000 -0.01043 13.98 ug/L Pb 208 3664.330 5.192 0.001 0.04294 13.72 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Sc-1 45 102.566 Cr 52 Cr 53 Mn 55

Sample ID: AE08425 Report Date/Time: Tuesday, April 16, 2002 14:57:06 Page 1

NYC-WTC_000040840

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NYC-WTC_000040840Source: NYC Law Department, mirrored locally

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