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ICPMS daily performance check report, April 22, 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_000040871–000040923

Folder label: “ICPMS 4/22/01

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: ICV CAL BK Sample Date/Time: Monday, April 22, 2002 12:02:27 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\ICV CAL BK.494 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 9.333 26.964 -0.000 -0.01095 76.13 ug/L Se-1 45 448765.578 0.528 448765.578 ug/L Cr 52 7045.800 0.789 -0.001 -0.03809 16.72 ug/L Cr 53 627.695 5.625 -0.000 -0.13603 28.28 ug/L Mn 55 1641.832 4.181 -0.000 -0.01253 44.70 ug/L Ni 60 215.338 4.652 0.000 0.00242 177.35 ug/L Cu 63 409.347 6.114 -0.000 -0.01014 52.54 ug/L Cu 65 211.671 4.073 -0.000 -0.01079 28.54 ug/L Zn 66 619.694 6.369 -0.000 -0.02177 87.12 ug/L Zn 67 137.669 2.936 -0.000 -0.02399 66.07 ug/L Zn 68 514.353 11.268 0.000 0.00399 1358.25 ug/L > Ge 72 88529.954 1.842 88529.954 ug/L As 75 6.249 892.427 -0.001 -0.03335 94.69 ug/L Se 77 114.621 10.159 -0.000 -0.05750 124.92 ug/L Se 82 84.001 12.599 -0.000 -0.07032 83.23 ug/L Ag 107 2021.913 8.232 0.001 0.13699 9.50 ug/L In 115 1341542.388 1.617 1341542.388 ug/L Sb 121 58.334 14.377 0.000 0.00144 59.11 ug/L Sb 123 48.607 22.428 0.000 0.00231 63.84 ug/L Ba 135 109.335 60.146 0.000 0.01198 199.69 ug/L Ba 137 129.669 0.891 0.000 0.00254 4.62 ug/L Ho 165 1872910.854 0.775 -0.002 ug/L > Tb 159 1893489.785 1.330 1893489.785 ug/L Hg 201 132.336 6.427 0.000 0.04826 14.79 ug/L Hg 202 258.673 17.187 0.000 0.04208 35.76 ug/L Tl 205 1127.748 5.633 -0.000 -0.00048 623.33 ug/L Pb 208 2176.457 7.013 0.000 0.00422 / 84.36 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ’ Be 9 > Sc-1 45 105.745 Cr 52 Cr 53 Mn 55

Sample ID: ICV CAL BK Report Date/Time: Monday, April 22, 2002 12:05:15 Page 1

NYC-WTC_000040878

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