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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: CCV STD2 60 PPB AND 5 PPB Sample Date/Time: Monday, April 22, 2002 13:56:23 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\CCV STD2 60 PPB AND 5 PPB.516 Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results Analyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Conc. Mean Cone. RSD Sample Unit Be 9 22319.254 0.148 0.046 66.84847 1.04 ug/L Se-1 45 489312.194 0.959 489312.194 ug/L Cr 52 542097.940 0.662 1.092 58.81530 1.14 ug/L Cr 53 64581.558 0.163 0.130 58.31534 0.89 ug/L Mn 55 842246.202 1.149 1.717 59.39393 2.07 ug/L Ni 60 132295.809 2.811 0.270 56.03988 3.79 ug/L Cu 63 301087.784 1.145 0.614 56.03684 2.11 ug/L Cu 65 148202.235 1.531 0.302 55.70043 2.48 ug/L Zn 66 96185.294 2.297 1.034 61.89496 1.64 ug/L Zn 67 17201.432 1.095 0.185 60.46443 0.61 ug/L Zn 68 71378.906 1.925 0.767 61.20856 0.96 ug/L Ge 72 92336.517 1.080 92336.517 ug/L As 75 109457.408 0.157 1.185 59.14006 0.95 ug/L Se 77 10028.452 0.752 0.107 59.85023 1.76 ug/L Se 82 12092.492 0.779 0.130 59.71948 1.06 ug/L Ag 107 598520.974 0.701 0.461 59.65525 1.12 ug/L > In 115 1297271.003 1.798 1297271.003 ug/L Sb 121 515263.869 1.476 0.397 59.98696 0.78 ug/L Sb 123 400159.352 1.208 0.308 60.07724 1.60 ug/L Ba 135 158128.760 1.183 0.089 60.34635 0.69 ug/L Ba 137 273584.873 0.858 0.154 60.05622 0.95 ug/L Ho 165 1766272.594 1.018 0.003 ug/L > Tb 159 1776848.878 1.345 1776848.878 ug/L Hg 201 5730.530 0.575 0.003 4.84864 1.49 ug/L

n Hg

Pb 202 205 208 12947.348 1433621.120 1947616.308 2.955 1.179 0.106 0.007 0.806 1.095 *0/ 4.90868 58.84093 2.73 1.01 1.27 ug/L ug/L ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rel. % Diff ' Be 9 > Se-1 45 115.299 Cr 52 Cr 53 Mn 55

Sample ID: CCV STD2 60 PPB AND 5 PPB Report Date/Time: Monday, April 22, 2002 13:58:42 Page 1

NYC-WTC_000040922

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NYC-WTC_000040922Source: NYC Law Department, mirrored locally

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