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Potassium lab results, WTC samples, Nov 1 2001

Machine-extracted title · confidence 90%

Laboratory report listing sample IDs and QC data for potassium analysis of World Trade Center environmental samples dated November 1, 2001.

NYC-WTC_000065821–000065850

Folder label: “K 11/1/01

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NYC 9/11 Public Portal Document

Element: K Seq. No.: 84 AS hoc.: Date: 11/01/2001 ■San^le ID: 26677

Repl SanpleConc StndConc BlnkCorr Time # Mg/L Mg/L Signal 1 462.3 462.3 0.074 12:45:26 2 462.5 462.5 0.074 12:45:33 3 458.8 458.8 0.073 12:45:40 4 457.9 457.9 0.073 12:45:47 Mean: 460.4 460.4 0.073 SD : 2.353 2.353 0.000 %RSD: 0.51 0.51 0.53

Element: K Seq. No.: 85 AS Log.: Date: 11/01/2001 Sample ID: 26678

Repl SanpleConc StndConc BlnkCorr Time # Mg/L Mg/i* Signal 1 455.8 455.8 0.073 12:46:29 2 462.7 462.7 0.074 12:46:37 3 461.7 461.7 0.074 12:46:44 4 464.5 464.5 0.074 12 :46:51 Mean: 461.2 461.2 0.073 SD : 3.769 3.769 0.001 %RSD: 0.82 0.82 0.85

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Element: K Seq. No.: 86 AS Log.: Date: 11/01/2001 Sample ID: 26679

Repl SanpleConc StndConc BlnkCorr Time # Mg/L /ig/L Signal 1 460.2 460.2 0.073 12:47:10 2 458.9 458.9 0.073 12:47:17 3 460.9 460.9 0.073 12:47:24 4 459.6 459.6 0.073 12:47:32 Mean: 459.9 459.9 0.073 SD : 0.8395 0.8395 0.000 %RSD: 0.18 0.18 0.19

Element: K Seq. No.: 87 AS Log.: Date: 11/01/2001 Sample ID: 26680

Repl SanpleConc StndConc BlnkCorr Time # gg/L Mg/L Signal 1 454.1 454.1 0.072 12:47:53 2 463.8 463.8 0.074 12:48:00 3 460.3 460.3 0.073 12:48:07 4 465.0 465.0 0.074 12:48:14 Mean: 460.8 460.8 0.073 SD : 4.902 4.902 0.001 %RSD: 1.06 1.06 1.11

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NYC-WtC_000665844

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NYC-WTC_000065844Source: NYC Law Department, mirrored locally

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