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ICPMS daily performance check report, April 9, 2002

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Daily instrument performance verification log for ICPMS analysis including intensity and standard deviation data for multiple elements.

NYC-WTC_000040287–000040339

Folder label: “ICPMS 4/9/02

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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 60 PPB Sample Date/Time: Tuesday, April 09, 2002 10:19:05 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\ICV STD2 60 PPB.343 Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results Analyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Conc. Mean Conc. RSD Sample Unit Be 9 28512.600 1.334 0.050 61.06639 1.26 ug/L Sc-1 45 565598.249 2.497 565598.249 ug/L Cr 52 630938.989 1.478 1.101 60.22233 2.58 ug/L Cr 53 74960.651 2.461 0.131 60.64437 2.51 ug/L Mn 55 1005751.009 1.582 1.776 60.91752 3.24 ug/L Ni 60 158240.319 2.200 0.280 60.73426 3.85 ug/L Cu 63 358539.141 1.786 0.634 60.08858 2.03 ug/L Cu 65 177221.743 2.859 0.313 60.32975 3.95 ug/L Zn 66 112522.800 2.367 1.046 59.98583 1.75 ug/L Zn 67 20031.914 0.744 0.186 59.70600 1.86 ug/L Zn 68 82185.649 0.478 0.764 59.47966 1.41 ug/L Ge 72 107119.556 1.428 107119.556 ug/L As 75 131752.990 2.223 1.227 60.38655 2.46 ug/L Se 77 11214.029 3.031 0.103 59.08424 2.64 ug/L Se 82 15064.292 2.263 0.139 60.75361 2.50 ug/L Ag 107 752999.297 1.560 0.491 60.48494 1.48 ug/L In 115 1530707.127 1.273 1530707.127 ug/L Sb 121 619584.935 0.738 0.405 59.78959 0.58 ug/L Sb 123 479051.549 1.352 0.313 59.77573 0.29 ug/L Ba 135 186783.996 1.056 0.092 58.94166 0.60 ug/L Ba 137 326683.473 2.214 0.161 59.01419 1.59 ug/L Ho 165 1753294.836 0.752 -0.002 ug/L Tb 159 2022690.258 0.819 2022690.258 ug/L Ti 205 1689530.336 1.217 0.835 58.98804 0.46 ug/L Pb 208 2285874.363 1.006 1.129 58.75392 0.26 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rel. % Diff Be 9 > Sc-1 45 97.210 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: ICV STD2 60 PPB Report Date/Time: Tuesday, April 09, 2002 10:21:14 Page 1

NYC-WTC 000040298

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NYC-WTC_000040298Source: NYC Law Department, mirrored locally

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