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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: AE06797 Sample Date/Time: Thursday, April 11, 2002 13:51:03 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\AE06797.476 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 8.667 46.632 -0.000 -0.01225 79.56 ug/L Se-1 45 478534.175 2.480 478534.175 ug/L Cr 52 7729.030 2.754 0.001 0.04232 106.38 ug/L Cr 53 1339.779 0.859 0.002 0.79498 3.14 ug/L Mn 55 217838.359 0.978 0.451 15.09886 2.34 ug/L NI 60 762.706 4.066 0.001 0.33855 4.62 ug/L Cu 63 6048.407 3.701 0.012 1.15631 1.94 ug/L Cu 65 2850.809 4.720 0.006 1.13383 6.97 ug/L Zn 66 2472.361 3.539 0.018 1.02905 4.13 ug/L Zn 67 623.028 3.125 0.005 1.59009 6.07 ug/L Zn 68 2281.309 0.432 0.018 1.46767 1.83 ug/L > Ge 72 94356.154 1.518 94356.154 ug/L As 75 514.099 4.542 0.005 0.25746 6.07 ug/L Se 77 145.336 8.295 0.000 0.29214 25.80 ug/L Se 82 126.002 3.175 0.000 0.12510 16.01 ug/L Ag 107 2204.290 4.880 0.001 0.06953 14.84 ug/L Cd 111 973.601 3.714 -0.000 -0.00795 240.82 ug/L Cd 114 119.989 9.822 0.000 0.00844 25.19 ug/L > In 115 1285730.447 1.559 1285730.447 ug/L Sb 121 707.701 8.096 0.000 0.07031 7.82 ug/L Sb 123 551.090 4.965 0.000 0.07307 5.29 ug/L Ba 135 38162.330 1.801 0.022 15.52223 1.67 ug/L Ba 137 62692.410 1.365 0.037 14.80362 1.51 ug/L > Tb 159 1709657.859 0.458 1709657.859 ug/L Ho 165 1653916.822 2.908 0.007 ug/L n 205 1026.068 3.389 -0.000 -0.01829 7.37 ug/L Pb 208 4502.150 1.962 0.002 0.09038 2.67 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Sc-1 45 100.862 Cr 52 Cr 53 Mn 55

Sample ID: AE06797 Report Date/Time: Thursday, April 11,200213:52:50 Page 1

NYC-WTC_000040623

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NYC-WTC_000040623Source: NYC Law Department, mirrored locally

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