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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: LRB Sample Date/Time: Monday, April 22, 2002 12:26:19 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\LRB.499 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 8.333 38.575 -0.000 -0.01551 63.85 ug/L > Se-1 45 470210.090 0.966 470210.090 ug/L Cr 52 7219.939 2.367 -0.001 -0.05678 23.03 ug/L Cr 53 569.024 4.883 -0.000 -0.22037 14.40 ug/L Mn 55 1591.155 2.776 -0.001 -0.02205 9.79 ug/L Ni 60 225.672 23.972 0.000 0.00241 976.98 ug/L Cu 63 416.347 5.187 -0.000 -0.01258 34.14 ug/L Cu 65 234.005 10.398 -0.000 -0.00600 154.94 ug/L Zn 66 598.692 1.231 -0.001 -0.04529 16.69 ug/L Zn 67 137.336 2.341 -0.000 -0.03737 21.73 ug/L Zn 68 477.684 8.262 -0.000 -0.03961 79.12 ug/L > Ge 72 90679.937 0.873 90679.937 ug/L As 75 . 18.668 70.067 -0.001 -0.02668 26.98 ug/L Se 77 108.579 21.558 -0.000 -0.11100 134.72 ug/L Se 82 100.002 9.165 -0.000 -0.00012 34109.83 ug/L Ag 107 2212.625 2.038 0.001 0.15643 2.57 ug/L > In 115 1335868.482 1.134 1335868.482 ug/L Sb 121 53.667 9.192 0.000 0.00095 64.24 ug/L Sb 123 46.025 12.869 0.000 0.00198 43.69 ug/L Ba 135 74.668 14.813 -0.000 -0.00030 1234.19 ug/L Ba 137 137.336 8.184 0.000 0.00440 45.60 ug/L Ho 165 1857827.625 1.274 0.000 ug/L > Tb 159 1874228.663 1.543 1874228.663 ug/L Hg 201 154.003 10.450 0.000 0.06686 17.91 ug/L Hg 202 323.676 9.167 0.000 0.06668 14.37 ug/L TI 205 1004.066 7.308 -0.000 -0.00483 70.89 ug/L Pb 208 1983.104 4.738 -0.000 -0.00066 / 528.74 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Se-1 45 110.798 Cr 52 Cr 53 Mn 55

Sample ID: LRB Report Date/Time: Monday, April 22,2002 12:28:40 Page 1

NYC-WTC_000040888

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