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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: CCV CALBK Sample Date/Time: Thursday, April 11, 2002 15:14:40 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\CCV CAL BK.485 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 9.667 58.823 -0.000 -0.00830 178.50 ug/L Se-1 45 450770.735 1.399 450770.735 ug/L Cr 52 6386.974 1.118 -0.001 -0.06863 21.10 ug/L Cr 53 944.059 4.367 0.001 0.47482 10.97 ug/L Mn 55 1163.753 4.155 -0.001 -0.04566 9.37 ug/L Ni 60 48.667 9.266 -0.000 -0.00181 135.25 ug/L Cu 63 231.005 2.410 -0.000 -0.00023 725.45 ug/L Cu 65 131.002 5.763 -0.000 -0.00033 962.94 ug/L Zn 66 898.367 2.815 -0.000 -0.02480 30.21 ug/L Zn 67 163.336 9.272 0.000 0.01376 417.94 ug/L Zn 68 508.019 6.771 -0.000 -0.03917 95.99 ug/L Ge 72 89428.652 1.358 89428.652 ug/L As 75 105.656 15.473 0.001 0.03812 22.96 ug/L Se 77 116.669 4.051 0.000 0.15392 25.64 ug/L Se 82 111.335 5.981 0.000 0.08339 43.09 ug/L Ag 107 102.668 9.206 -0.001 -0.14142 0.73 ug/L Cd 111 1043.917 4.514 0.000 0.02781 49.46 ug/L Cd 114 444.090 12.732 0.000 0.06292 13.67 ug/L In 115 1258112.526 1.198 1258112.526 ug/L Sb 121 40.000 22.500 -0.000 -0.00412 26.06 ug/L Sb 123 37.274 18.744 -0.000 -0.00369 27.21 ug/L Ba 135 66.668 6.764 0.000 0.00616 27.95 ug/L Ba 137 96.668 6.888 0.000 0.00090 176.68 ug/L > Tb 159 1683623.579 1.281 1683623.579 ug/L Ho 165 1672278.466 3.460 0.033 ug/L TI 205 909.055 12.150 -0.000 -0.02279 19.45 ug/L Pb 208 1825.422 4,000 0.000 0.00536 35.38 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 95.010 Cr 52 Cr 53 Mn 55

Sample ID: CCV CALBK Report Date/Time: Thursday, April 11, 2002 15:17:17 Page 1

NYC-WTC_000040641

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NYC-WTC_000040641Source: NYC Law Department, mirrored locally

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