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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: CCV STD2 60 PPB AND 5 PPB Sample Date/Time: Tuesday, April 23, 2002 11:50:36 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\CCV STD2 60 PPB AND 5 PPB.681 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 23532.326 1.813 0.049 65.47491 J 0.33 ug/L > Se-1 45 484421.644 1.714 484421.644 ug/L Cr 52 529383.720 2.161 1.077 59.04943 1.21 ug/L Cr 53 62875.692 1.807 0.128 59.16870 1.27 ug/L Mn 55 832201.706 2.959 1.716 60.61172 1.97 ug/L Ni 60 128294.849 2.286 0.264 58.72238 0.62 ug/L Cu 63 288546.059 0.801 0.595 58.07776 1.50 ug/L Cu 65 143033.487 2.009 0.295 57.64908 1.44 ug/L Zn 66 93767.201 2.334 1.009 60.67241 1.87 ug/L Zn 67 16913.890 0.964 0.182 59.76650 0.88 ug/L Zn 68 69758.373 1.812 0.751 60.34070 2.12 ug/L Ge 72 92112.271 1.282 92112.271 ug/L As 75 107985.353 1.995 1.172 59.73505 2.37 ug/L Se 77 10010.334 1.217 0.107 60.38625 2.44 ug/L Se 82 11899.235 0.671 0.128 59.25250 0.62 ug/L Ag 107 560971.780 2.055 0.447 58.97160 2.75 ug/L Cd 111 149538.950 1.171 0.119 59.84012 1.79 ug/L Cd 114 354043.674 0.866 0.283 60.17661 2.25 ug/L In 115 1252981.421 1.751 1252981.421 ug/L Sb 121 502706.186 1.254 0.401 59.00801 1.27 ug/L Sb 123 391371.946 1.305 0.312 59.28262 0.45 ug/L Ba 135 149872.172 0.868 0.087 59.43707 0.91 ug/L Ba 137 261857.283 1.061 0.152 59.30130 0.89 ug/L > Tb 159 1720912.913 0.307 1720912.913 ug/L Ho 165 1705103.072 0.975 -0.001 ug/L Hg 201 5491.380 0.919 0.003 5.01140 0.74 ug/L Hg 202 12305.781 1.788 0.007 4.81207 1.87 ug/L n 205 1358722.123 1.115 0.789 58.83643 1.20 ug/L Pb 208 1835418.971 0.638 1.065 59.23736 0.87 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Se-1 45 104.321 Cr 52

Sample ID: CCV STD2 60 PPB AND 5 PPB Report Date/Time: Tuesday, April 23, 2002 11:53:05 Page 1

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