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ICPMS daily performance check report, April 10, 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_000040452–000040596

Folder label: “ICPMS 4/10/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: Standard 2 Sample Date/Time: Wednesday, April 10, 2002 09:40:13 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 2.421 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 29874.316 1.933 0.055 60.13155 1.03 ug/L > Se-1 45 539548.408 1.960 539548.408 ug/L Cr 52 603573.839 2.601 1.105 60.19261 0.90 ug/L Cr 53 70779.549 1.547 0.130 59.90089 1.27 ug/L Mn 55 953929.853 1.333 1.763 59.88803 0.64 ug/L Ni 60 148780.498 1.182 0.276 59.94807 1.00 ug/L Cu 63 343813.395 0.795 0.636 60.11183 1.53 ug/L Cu 65 167222.624 1.818 0.310 59.96041 2.30 ug/L Zn 66 108628.242 0.522 1.040 60.11666 1.24 ug/L Zn 67 19252.224 0.811 0.184 60.11787 1.56 ug/L Zn 68 79818.057 1.609 0.764 60.04620 2.49 ug/L > Ge 72 103598.061 1.476 103598.061 ug/L As 75 124953.878 1.959 1.203 60.03892 0.67 ug/L Se 77 10538.210 0.390 0.100 59.65021 1.75 ug/L Se 82 14274.009 1.728 0.136 59.96768 0.94 ug/L Ag 107 702183.488 1.125 0.489 60.39491 1.50 ug/L In 115 1434617.584 0.588 1434617.584 ug/L Sb 121 583790.719 1.173 0.407 60.09951 1.12 ug/L Sb 123 452977.794 2.226 0.316 60.03470 1.84 ug/L Ba 135 175189.739 0.879 0.089 59.67962 0.19 ug/L Ba 137 305157.639 0.746 0.155 59.64228 1.27 ug/L Ho 165 1942136.877 0.967 0.130 ug/L > Tb 159 1962874.988 1.032 1962874.988 ug/L TI 205 1612682.140 2.181 0.821 59.59397 1.85 ug/L Pb 208 2178470.424 1.498 1.109 59.44630 0.86 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 NI 60 Cu 63

Sample ID: Standard 2 Report Date/Time: Wednesday, April 10, 2002 09:41:47 Page 1

NYC-WTC_000040457

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NYC-WTC_000040457Source: NYC Law Department, mirrored locally

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