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ICPMS daily performance check report, April 10, 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_000040452–000040596

Folder label: “ICPMS 4/10/02”

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: CCV CALBK Sample Date/Time: Wednesday, April 10, 2002 13:07:17 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\CCV CAL BK.471 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 10.333 11.175 0.000 0.00393 67.11 ug/L Se-1 45 469944.191 1.352 469944.191 ug/L Cr 52 6506.059 1.071 0.000 0.00660 261.67 ug/L Cr 53 899.054 4.914 0.000 0.16390 19.59 ug/L Mn 55 672.699 21.291 -0.004 . -0.12844 8.50 ug/L Ni 60 67.668 97.921 0.000 0.01958 153.44 ug/L Cu 63 218.005 1.214 -0.001 -0.07622 1.33 ug/L Cu 65 128.002 7.453 0.000 0.01760 18.48 ug/L Zn 66 629.361 6.705 -0.001 -0.06425 48.40 ug/L Zn 67 165.003 11.060 0.000 0.06229 109.14 ug/L Zn 68 494.685 4.261 -0.001 -0.04796 38.78 ug/L Ge 72 87939.186 0.978 87939.186 ug/L As 75 141.289 49.897 -0.002 -0.07981 50.37 ug/L Se 77 131.336 4.895 0.000 0.06678 75.95 ug/L Se 82 121.335 6.611 -0.001 -0.28687 14.94 ug/L Ag 107 108.335 1.922 -0.001 -0.06187 0.30 ug/L > In 115 1235053.329 0.220 1235053.329 ug/L Sb 121 56.001 16.366 0.000 0.00197 55.45 ug/L Sb 123 42.062 19.447 0.000 0.00213 59.67 ug/L Ba 135 41.667 3.666 -0.000 -0.00348 17.77 ug/L Ba 137 89.668 10.120 0.000 0.00360 57.64 ug/L Ho 165 1675237.427 0.843 0.136 ug/L > Tb 159 1682257.542 0.077 1682257.542 ug/L TI 205 462.683 11.306 -0.000 -0.01304 17.36 ug/L Pb 208 1459.726 4.094 -0.000 -0.01041 18.30 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Se-1 45 83.536 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: CCV CALBK Report Date/Time: Wednesday, April 10, 2002 13:09:24 Page 1

NYC-WTC_000040557

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NYC-WTC_000040557Source: NYC Law Department, mirrored locally

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