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ICPMS daily performance check report, April 9, 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_000040287–000040339

Folder label: “ICPMS 4/9/02

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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 Sample Date/Time: Tuesday, April 09, 2002 09:59:26 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\Standard 1.339 Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results Analyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Conc. Mean Conc. RSD Sample Unit Be 9 14180.198 2.868 0.025 30.00000 0.97 ug/L Sc-1 45 572937.889 2.470 572937.889 ug/L Cr 52 320157.167 2.391 0.544 30.00000 0.08 ug/L Cr 53 38001.998 2.057 0.065 30.00000 0.75 ug/L Mn 55 503366.897 2.148 0.876 30.00000 1.04 ug/L NI 60 79757.655 2.837 0.139 30.00000 0.48 ug/L Cu 63 184802.309 0.451 0.322 30.00000 2.15 ug/L Cu 65 90723.759 1.601 0.158 30.00000 1.01 ug/L Zn 66 58552.210 0.668 0.524 30.00000 2.42 ug/L Zn 67 10651.343 0.415 0.095 30.00000 2.12 ug/L Zn 68 43450.031 1.213 0.389 30.00000 0.89 ug/L Ge 72 110741.320 1.755 110741.320 ug/L As 75 67384.964 0.390 0.606 30.00000 2.16 ug/L Se 77 5891.301 1.693 0.052 30.00000 3.18 ug/L Se 82 7720.688 1.838 0.068 30.00000 3.70 ug/L Ag 107 378774.198 0.132 0.238 30.00000 1.04 ug/L In 115 1583454.588 1.092 1583454.588 uglL Sb 121 314005.746 0.484 0.198 30.00000 1.31 ug/L Sb 123 243161.891 1.334 0.154 30.00000 0.68 ug/L Ba 135 96039.322 1.451 0.047 30.00000 0.94 ug/L Ba 137 168183.528 2.008 0.083 30.00000 2.02 ug/L Ho 165 1735509.237 1.389 -0.012 ug/L Tb 159 2025816.909 1.210 2025816.909 ug/L TI 205 882419.065 1.919 0.435 30.00000 2.62 ug/L Pb 208 1189184.349 1.540 0.586 30.00000 1.78 ug/L

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

Sample ID: Standard I Report Date/Time: Tuesday, April 09, 2002 10:01:01 Page 1

NYC-WTC 000040290

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NYC-WTC_000040290Source: NYC Law Department, mirrored locally

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