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ICPMS daily performance check report, May 15, 2002

Machine-extracted title · confidence 98%

Daily instrument calibration and performance verification log for ICPMS equipment conducted on May 15, 2002.

NYC-WTC_000053505–000053628

Folder label: “ICPMS 5/15/02

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NYC 9/11 Public Portal Document

Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff Be 9 100.737 Li 6 91.588 > Sc-1 45 91.617 Cr 52 95.660 Cr 53 94.158 Mn 55 92.032 Co 59 95.253 Ni 60 98.034 Cu 63 96.877 Cu 65 97.886 Zn 66 104.439 Zn 67 101.384 Zn 68 103.166 > Ge 72 94.813 As 75 100.206 Se 77 109.740 Se 82 108.572 As-1 75 90.232 Kr 83 Ag 107 89.872 Cd 111 94.715 Cd 114 95.924 > In 115 96.539 Sb 121 102.541 Sb 123 103.235 Ba 135 86.352 Ba 137 85.291 Ho 165 Tb 159 99.003 Hg 201 91.593 Hg 202 92.362 n 205 104.621 Pb 208 87.812 Calibration Analyte MassCurve Type Correlation Coefficient Be 9LinearThru Zero 0.999997 Li 6LinearThru Zero Sc-1 45Linear Thru Zero Cr 52Linear Thru Zero 0.999998 Cr 53Llnear Thru Zero 0.999900 Mn 55Linear Thru Zero 0.999914 Co 59Llnear Thru Zero 0.999954 Ni 60Linear Thru Zero 0.999985 Cu 63Linear Thru Zero 0.999990 Cu 65Linear Thru Zero 0.999993 Zn 66Linear Thru Zero 0.999997 Zn 67Linear Thru Zero 0.999939 Zn 68Llnear Thru Zero 0.999973 > Ge 72Linear Thru Zero As 75Linear Thru Zero 0.999999 Se 77Linear Thru Zero 0.999784 Se 82Linear Thru Zero 0.999970

Sample ID: AE10131 Report Date/Time: Wednesday, May 15, 2002 10:51:37 Page 2

NYC-WTC_000053543

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NYC-WTC_000053543Source: NYC Law Department, mirrored locally

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NYC-WTC_000053630 · Box DEP Box 29

Laboratory analysis results for a Westchester County Department of Labs and Research sample processed on May 15, 2002.

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