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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: Standard 2 Sample Date/Time: Monday, April 22, 2002 11:56:59 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\Standard 2.493 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 17853.034 2.842 0.041 59.97127 2.22 ug/L Se-1 45 436183.164 0.706 436183.164 ug/L Cr 52 491221.344 1.540 1.110 59.79820 1.41 ug/L Cr 53 59087.711 2.038 0.134 59.86713 1.49 ug/L Mn 55 758103.039 0.618 1.734 59.96653 0.57 ug/L Ni 60 125732.480 1.024 0.288 59.74033 1.13 ug/L Cu 63 285876.158 1.141 0.654 59.68751 1.53 ug/L Cu 65 141026.071 1.801 0.323 59.45500 1.37 ug/L Zn 66 87230.186 2.327 1.001 59.92805 1.48 ug/L Zn 67 15988.544 1.910 0.183 60.01469 1.96 ug/L Zn 68 65431.988 1.599 0.751 59.90984 0.66 ug/L > Ge 72 86476.677 2.179 86476.677 ug/L As 75 103972.393 1.946 1.202 59.98543 1.38 ug/L Se 77 9374.121 3.486 0.107 59.72160 2.17 ug/L Se 82 11333.177 2.840 0.130 59.76570 2.55 ug/L Ag 107 610144.657 1.560 0.461 59.66223 2.31 ug/L > In 115 1322350.485 1.435 1322350.485 ug/L Sb 121 523862.473 1.041 0.396 59.83243 1.14 ug/L Sb 123 405936.557 0.625 0.307 59.78490 0.89 ug/L Ba 135 165213.170 1.191 . 0.088 59.82606 0.42 ug/L Ba 137 287787.954 1.391 0.154 59.94166 0.79 ug/L Ho 165 1855424.305 0.759 0.000 ug/L Tb 159 1872598.729 1.500 1872598.729 ug/L Hg 201 6179.162 2.924 0.003 4.96165 2.58 ug/L Hg 202 13790.926 1.929 0.007 4.96261 2.75 ug/L ti 205 1532749.399 1.079 0.818 59.69330 0.54 ug/L Pb 208 2067628.500 1.226 1.103 59.75637 0.87 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 2 Report Date/Time: Monday, April 22, 2002 11:58:40 Page 1

NYC-WTC_000040876

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