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ICPMS daily performance check report, April 23, 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_000040976–000041063

Folder label: “ICPMS 4/23/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: ICV STD2 60PPBAND5PPB Sample Date/Time: Tuesday, April 23, 2002 09:32:52 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york cityICV STD2 60 PPB AND 5 PPB.658 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 21367.634 1.734 0.045 61.14125 1.79 ug/L Se-1 45 471078.647 1.749 471078.647 ug/L Cr 52 517791.003 1.729 1.083 59.39908 0.71 ug/L Cr 53 60414.710 1.392 0.127 58.45708 1.20 ug/L Mn 55 805149.485 0.229 1.707 60.31674 1.51 ug/L Ni 60 129275.419 1.439 0.274 60.85816 0.87 ug/L Cu 63 289107.663 1.873 0.613 59.83997 2.02 ug/L Cu 65 143050.825 0.644 0.303 59.29802 1.14 ug/L Zn 66 91683.622 1.130 1.020 61.31541 2.11 ug/L Zn 67 16465.399 1.945 0.183 60.12439 2.13 ug/L Zn 68 68465.638 2.521 0.761 61.19023 1.32 ug/L > Ge 72 89143.188 1.207 89143.188 ug/L As 75 105968.765 0.462 1.188 60.57028 1.01 ug/L Se 77 9697.090 0.592 0.108 60.44204 1.78 ug/L Se 82 11690.296 1.140 0.130 60.16160 1.64 ug/L Ag 107 580803.371 2.060 0.457 60.25855 3.75 ug/L Cd 111 150483.877 1.383 0.118 59.41789 2.35 ug/L Cd 114 358411.422 1.116 0.282 60.10343 1.71 ug/L In 115 1269925.423 2.075 1269925.423 ug/L Sb 121 520989.145 1.337 0.410 60.33939 1.06 ug/L Sb 123 403134.276 1.124 0.317 60.25733 1.52 ug/L Ba 135 158506.972 1.353 0.088 60.25658 0.69 ug/L Ba 137 275830.058 1.603 0.154 59.87782 1.13 ug/L > Tb 159 1795392.702 1.644 1795392.702 ug/L Ho 165 1770344.210 0.765 -0.006 ug/L Hg 201 5716.521 1.310 0.003 5.00056 0.38 ug/L Hg 202 12902.947 1.295 0.007 4.83668 0.36 ug/L TI 205 1411221.918 0.294 0.786 58.58299 1.40 ug/L Pb 208 1935487.356 0.681 1.077 59.88175 0.97 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery l nt Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ’ Be 9 > Sc-1 45 101.447 Cr 52

Sample ID: ICV STD2 60PPBAND5PPB Report Date/Time: Tuesday, April 23, 2002 09:35:21 Page 1

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