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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: Standard 2 Sample Date/Time: Tuesday, April 16,2002 09:14:29 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\Standard 2.548 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 23949.413 0.893 0.050 60.09370 1.53 ug/L Se-1 45 479229.991 1.131 479229.991 ug/L Cr 52 556089.218 0.538 1.144 59.48330 1.47 ug/L Cr 53 65805.988 1.062 0.136 59.80234 1.52 ug/L Mn 55 883598.676 1.096 1.841 60.00949 0.92 ug/L Ni 60 140653.927 2.539 0.293 60.22343 3.48 ug/L Cu 63 302920.633 0.742 0.632 59.75739 0.44 ug/L Cu 65 157471.211 1.435 0.328 59.29944 2.23 ug/L Zn 66 100893.224 1.711 1.076 59.57474 2.02 ug/L Zn 67 18350.687 0.776 0.195 59.74780 1.16 ug/L Zn 68 74352.793 3.407 0.793 59.66006 3.32 ug/L > Ge 72 93253.808 0.906 93253.808 ug/L As 75 116393.685 2.476 1.248 59.50958 2.46 ug/L Se 77 10546.139 1.342 0.112 59.43942 0.73 ug/L Se 82 12736.376 0.390 0.135 59.62916 0.81 ug/L Ag 107 682605.172 2.800 0.500 60.05047 3.28 ug/L Cd 111 171252.999 0.970 0.125 60.07576 1.49 ug/L Cd 114 387011.124 2.098 0.283 59.94472 3.33 ug/L > in 115 1365875.562 2.328 1365875.562 ug/L Sb 121 546656.761 1.416 0.400 59.67892 2.18 ug/L Sb 123 437808.176 1.265 0.321 59.77846 2.33 ug/L Ba . 135 171874.231 1.785 0.090 59.56115 2.77 ug/L Ba 137 304408.107 2.961 0.159 59.68297 3.32 ug/L > Tb 159 1909013.703 1.049 1909013.703 ug/L Ho 165 1954830.773 1.058 0.048 ug/L TI 205 1492518.143 0.428 0.781 59.58438 0.79 ug/L Pb 208 2086926.146 0.182 1.092 59.53244 1.03 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 Cr 52 Cr 53 Mn 55

Sample ID: Standard 2 Report Date/Time: Tuesday, April 16, 2002 09:16:16 Page 1

NYC-WTC_000040760

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NYC-WTC_000040760Source: NYC Law Department, mirrored locally

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