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ICPMS daily performance check report, April 11, 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_000040598–000040646

Folder label: “ICPMS 4/11/02

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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 1 Sample Date/Time: Thursday, April 11, 2002 12:10:21 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Datasef\new york city\Standard 1.465 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 12701.671 4.206 0.026 28.23259 7.09 ug/L Sc-1 45 497521.808 2.794 497521.808 ug/L Cr 52 273170.003 2.667 0.534 30.04457 5.61 ug/L Cr 53 30970.641 0.091 0.061 28.76817 2.90 ug/L Mn 55 428413.756 0.739 0.858 30.87063 3.35 ug/L Ni 60 63711.509 2.128 0.128 27.99943 4.98 ug/L Cu 63 156026.092 0.337 0.313 30.37587 2.51 ug/L Cu 65 74128.591 3.057 0.149 29.55357 5.89 ug/L Zn 66 47172.929 2.514 0.493 28.67063 1.04 ug/L Zn 67 8509.066 1.905 0.089 30.03722 4.97 ug/L Zn 68 34489.646 0.501 0.360 27.52652 3.42 ug/L Ge 72 94201.455 3.066 94201.455 ug/L As 75 54941.888 1.033 0.583 28.56960 3.51 ug/L Se 77 4733.280 3.317 0.049 29.81060 0.60 ug/L Se 82 6257.883 1.196 0.065 28.34374 2.09 ug/L Ag 107 296191.678 1.018 0.223 27.62130 0.89 ug/L Cd 111 78618.740 3.829 0.059 29.17112 3.01 ug/L Cd 114 185823.301 0.418 0.140 28.37547 2.05 ug/L > In 115 1323088.507 1.897 1323088.507 ug/L Sb 121 266328.397 2.223 0.201 29.50243 2.52 ug/L Sb 123 201794.200 2.022 0.152 28.67276 1.15 ug/L Ba 135 79642.525 1.600 0.045 30.31350 1.51 ug/L Ba 137 131973.345 0.292 0.074 28.28374 0.45 ug/L > Tb 159 1780945.092 0.491 1780945.092 ug/L Ho 165 1710336.478 2.839 -0.000 ug/L T1 205 732231.438 1.914 0.410 29.17547 2.37 ug/L Pb 208 975070.124 1.182 0.547 29.43072 1.53 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 1 Report Date/Time: Thursday, April 11, 2002 12:12:08 Page 1

NYC-WTC_000040601

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NYC-WTC_000040601Source: NYC Law Department, mirrored locally

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