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← Document results/DEP Box 29/ICPMS 5/24/02
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ICPMS daily performance check report, May 24, 2002

Machine-extracted title · confidence 98%

Daily instrument calibration and performance verification log for ICPMS equipment conducted on May 24, 2002.

NYC-WTC_000054375–000054546

Folder label: “ICPMS 5/24/02”

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NYC 9/11 Public Portal Document

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff Be 9 99.724 Li 6 97.053 > Sc-1 45 91.747 Cr 52 98.685 Cr 53 99.901 Mn 55 112.373 Co 59 97.594 Ni 60 96.023 Cu 63 97.448 Cu 65 95.312 Zn 66 101.172 Zn 67 101.368 Zn 68 101.903 Ge 72 91.148 As 75 109.877 Se 77 118.694 Se 82 114.424 As-1 75 91.164 Kr 83 Ag 107 101.609 Cd 111 99.611 Cd 114 98.520 in 115 91.000 Sb 121 104.324 Sb 123 103.895 Ba 135 102.278 Ba 137 101.038 Ho 165 Tb 159 92.090 / Hg 201 101.762 Hg 202 101.019 TI 205 95.553 Pb 208 94.639 Calibration Analyte MassCurve Type Correlation Coefficient Be 9Linear Thru Zero 0.999993 Li 6Linear Thru Zero Sc-1 45Linear Thru Zero Cr 52Linear Thru Zero 0.999996 Cr 53Linear Thru Zero 0.999995 Mn 55Linear Thru Zero 0.999997 Co 59Linear Thru Zero 0.999999 Ni 60Linear Thru Zero 0.999980 Cu 63Linear Thru Zero 0.999990 Cu 65Linear Thru Zero 0.999997 Zn 66Linear Thru Zero 0.999967 Zn 67Linear Thru Zero 0.999990 Zn 68Linear Thru Zero 0.999970 Ge 72Linear Thru Zero As 75Llnear Thru Zero 1.000000

Sample ID: AE11410 Report Date/Time: Friday, May 24, 2002 11:14:32 Page 2

NYC-WTC_000054455

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NYC-WTC_000054455Source: NYC Law Department, mirrored locally

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