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ICPMS daily performance check report, April 16, 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_000040755–000040869

Folder label: “ICPMS 4/16/02

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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 1 Sample Date/Time: Tuesday, April 16,2002 09:10:54 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\Standard 1.547 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 11838.489 1.269 0.025 28.79158 0.99 ug/L > Se-1 45 477277.214 2.094 477277.214 ug/L Cr 52 292741.483 1.402 0.597 31.93167 2.88 ug/L Cr 53 33629.101 1.761 0.069 31.41148 0.72 ug/L Mn 55 440070.264 0.963 0.920 29.73089 2.90 ug/L Ni 60 68786.808 3.396 0.144 31.61529 2.06 ug/L Cu 63 154029.038 1.775 0.322 30.89461 0.52 ug/L Cu 65 83110.375 1.265 0.174 33.12140 1.65 ug/L Zn 66 52949.334 2.305 0.557 31.96467 1.58 ug/L Zn 67 9513.738 0.899 0.100 31.03791 1.19 ug/L Zn 68 38763.917 3.335 0.408 32.36171 1.72 ug/L Ge 72 94059.483 1.962 94059.483 ug/L As 75 61131.802 2.836 0.650 32.94880 1.75 ug/L Se 77 5616.456 1.824 0.059 26.62758 1.43 ug/L Se 82 6672.849 2.318 0.070 31.61682 1.53 ug/L Ag 107 341388.875 1.232 0.249 31.34143 0.28 ug/L Cd 111 85962.728 1.501 0.062 30.15278 1.72 ug/L Cd 114 195235.316 2.444 0.142 30.77781 2.59 ug/L > In 115 1370775.636 1.072 1370775.636 ug/L Sb 121 281747.884 1.195 0.206 30.75181 2.02 ug/L Sb 123 223827.188 0.515 0.163 31.72614 1.41 ug/L Ba 135 89607.741 1.393 0.047 31.20559 1.25 ug/L Ba 137 157101.504 1.196 0.082 31.94721 1.81 ug/L > Tb 159 1918829.917 0.680 1918829.917 ug/L Ho 165 1944525.382 0.701 0.037 ug/L TI 205 777201.877 2.184 0.404 31.16916 1.85 ug/L Pb 208 1091246.723 0.351 . 0.567 31.21087 0.57 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 Cr 52 Cr 53 Mn 55

Sample ID: Standard 1 Report Date/Time: Tuesday, April 16, 2002 09:12:41 Page 1

NYC-WTC_000040758

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NYC-WTC_000040758Source: NYC Law Department, mirrored locally

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