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Lead (Pb) laboratory analysis results with QC notes, Oct 2001

Machine-extracted title · confidence 95%

Laboratory report listing sample IDs for lead analysis conducted on October 1, 2001, including remarks on quality control rejection.

NYC-WTC_000064501–000064514

Folder label: “Pb

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NYC 9/11 Public Portal Document

Element: Pb Seq. No.: 344 AS Loc.: 36 Date: 10/05/2001 Sample ID: Calib Blank pL dispensed: 12 from 36, 5 from 37, 24 from 36 pL dispensed: 12 from 36, 5 from 37, 24 from 36

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L Pg/L signal Area Height Area Height Stored 1 0.014 0.011 0.019 0.003 0.007 17:20:35 No

Element: Pb Seq. No.: 344 AS Loc.: 36 Date: 10/05/2001 Sample ID: Calib Blank pL dispensed: 12 from 36, 5 from 37, 24 from 36 pL dispensed: 12 from 36, 5 from 37, 24 from 36

Repl^__SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # .g/L pg/L Signal Area Height Area Height Stored 0.014 0.011 0.021 0.007 0.007 17:25:01 No Auto-zeri performed.

Element: Pb Seq. No.: 345 AS Loc.: 38 Date: 10/05/2001 Sample ID: SI pL dispensed: 33 from 36, 5 from 37, 3 from 38 pL dispensed: 33 from 36, 5 from 37, 3 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L signal Area Height Area Height Stored 1 0.024 0.034 0.060 0.013 0.020 17:29:17 No Standard number 1 applied. [1] Correlation Coefficient: 1.0000 Slope: 0.0236

Element: Pb Seq. No.: 346 AS Loc.: 38 Date: 10/05/2001 Sample ID: S2 pL dispensed: 30 from 36, 5 from 37, 6 from 38 pL dispensed: 30 from 36, 5 from 37, 6 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 0.046 0.057 0.094 0.019 0.030 17:33:37 No Standard number 2 applied. [2] Correlation Coefficient: 0.9999 Slope: 0.0232

Element: Pb Seq. No.: 347 AS Loc.: 38 Date: 10/05/2001 Sample ID: S4 pL dispensed: 24 from 36, 5 from 37, 12 from 38 pL dispensed: 24 from 36, 5 from 37, 12 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 0.079 0.090 0.151 0.031 0.047 17:37:57 No Standard number 3 applied. [4] Correlation Coefficient: 0.9952 Slope: 0.0196

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NYC-WTC_000064506

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NYC-WTC_000064506Source: NYC Law Department, mirrored locally

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