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Potassium sample log, WTC site, Nov 12 2001

Machine-extracted title · confidence 90%

Log entry for potassium sample processing at the World Trade Center site on November 12, 2001.

NYC-WTC_000065886–000065918

Folder label: “K 11/12/01

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NYC 9/11 Public Portal Document =^.====i=Ya================================================================:====3===========; Element: K Seq. No.: 16 AS Loe.: Date: 11/12/2001 Sample ID: 26805dup

Repl San^leConc StndConc BlnkCorr Time # gg/L Mg/L Signal 1 -18.67 -18.67 -0.004 15:32:48 2 -48.66 -48.66 -0.009 15:32:56 3 -30.15 -30.15 -0.006 15:33:03 4 -26.96 -0.005 15:33:10 Zz^-31.11 Mean: -31.11 -0.006 SD : 12.66 12.66 0.002 %RSD: 40.70 40.70 38.25

Element: K Seq. No.: 17 AS hoc.: Date: 11/12/2001 Sample ID: 26805spk

Repl SampleConc StndConc BlnkCorr Time # Mg/L gg/L Signal 1 1908 381.6 0.070 15:33:32 2 1850 370.0 0.068 15:33:40 3 1914 382.9 0.070 15:33:47 4 1911 382.2 0.070 15:33:54 Mean: 1896 379.2 0.070 SD : 30.66 6.133 0.001 %RSD: 1.62 1.62 1.63

Element: K Seq. No.: 18 AS Loc.: Date: 11/12/2001 San^jle ID: 26807

Repl San^leConc StndConc BlnkCorr Time # Mg/L pg/L Signal 1 -35.73 -35.73 -0.007 15:34:20 2 -33.87 -33.87 -0.007 15:34:27 3 -40.33 -40.33 -0.008 15:34:34 4 -56.25 -56.25 -0.011 15:34:42 Mean: -41.55 -41.55 -0.008 SD : 10.18 10.18 0.002 %RSD: 24.49 24.49 23.37

Element: K Seq. No.: 19 AS Loc.: Date: 11/12/2001 Sample ID: 26809

Repl SampleConc StndConc BlnkCorr Time # Mg/i- Signal 1 -37.95 -37.95 -0.007 15:35:01 2 -46.77 -46.77 -0.009 15:35:09 3 -45.26 -45.26 -0.009 15:35:16 4 -46.16 -46.16 -0.009 15:35:23 Mean: -44.04 -44.04 -0.008 SD : 4.104 4.104 0.001 %RSD: 9.32 9.32 8.92

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NYC-WTC_000065891

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NYC-WTC_000065891Source: NYC Law Department, mirrored locally

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