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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: AE07487 Sample Date/Time: Wednesday, April 10, 2002 10:35:32 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07487.434 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 11.667 13.093 0.000 0.00537 59.00 ug/L > Se-1 45 500344.811 1.285 500344.811 ug/L Cr 52 9284.165 1.189 0.005 0.26321 6.11 ug/L Cr 53 1389.787 5.400 0.001 0.56319 9.38 ug/L Mn 55 316103.243 1.432 0.627 21.28826 2.42 ug/L Ni 60 972.395 3.613 0.002 0.41105 3.25 ug/L Cu 63 53375.105 0.889 0.105 9.96192 0.85 ug/L Cu 65 26709.789 1.793 0.053 10.29786 2.29 ug/L Zn 66 8421.984 1.113 0.077 4.42042 1.99 ug/L Zn 67 1506.473 2.735 0.013 4.40012 4.07 ug/L Zn 68 6772.924 2.474 0.062 4.86497 2.25 ug/L > Ge 72 99358.045 1.148 99358.045 ug/L As 75 1115.030 4.211 0.008 0.40001 4.65 ug/L Se 77 185.670 9.700 0.000 0.28931 36.10 ug/L Se 82 247.006 4.669 0.000 0.20187 27.74 ug/L Ag 107 252.673 7.183 -0.000 -0.04958 4.49 ug/L > In 115 1352327.639 2.744 1352327.639 ug/L Sb 121 583.358 4.232 0.000 0.05900 4.26 ug/L Sb 123 432.907 8.180 0.000 0.05647 5.81 ug/L Ba 135 43295.295 1.279 0.023 15.71264 2.90 ug/L Ba 137 74546.503 1.224 0.040 15.52074 1.89 ug/L Ho 165 1825727.315 1.569 0.132 ug/L > Tb 159 1841365.684 1.909 1841365.684 ug/L TI 205 653.030 3.761 -0.000 -0.00727 7.09 ug/L Pb 208 11548.007 0.580 0.005 0.27939 2.29 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 88.940 Cr 52 Cr 53 Mn 55 NI 60 Cu 63

Sample ID: AE07487 Report Date/Time: Wednesday, April 10, 2002 10:37:07 Page 1

NYC-WTC_000040483

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NYC-WTC_000040483Source: NYC Law Department, mirrored locally

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