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Potassium lab results, WTC samples, Nov 1 2001

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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.: 32 AS Log.: Date: 11/01/2001 ,Sanple ID: Blk

Repl San^JleConc StndConc BlnkCorr Time # Mg/L Mg/L Signal 1 -86.73 -86.73 -0.017 12:02:33 2 -87.78 -87.78 -0.017 12:02:40 3 -91.41 -91.41 -0.018 12:02:47 4 -95.74 -95.74 -0.019 12:02:54 Mean: -90.42 , -90.42 -0.018 SD : 4.078 4.078 0.001 %RSD: 4.51 4.51 3.78

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Element: K Seq. No.: 33 AS Log.: Date: 11/01/2001 Sample ID: 26319

Repl SampleConc StndConc BlnkCorr Time # pg/L Signal 1 2280 2280 0.375 12:03:14 Sample absorbance is greater than that of the highest standard. 2 97.06 97.06 0.013 12:03:22 3 -154.4 -154.4 -0.028 12:03:29 4 -156.1 -156.1 -0.029 12:03:36 Mean: 516.5 516.5 0.083 SD : 1181 1181 0.196 %RSD: 228.7 228.7 236.76

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Element: K Seq. No.: 34 AS Log.: Date: 11/01/2001 Sample ID: 26320

Repl SampleConc StndConc BlnkCorr Time # Signal 1 733.8 733.8 0.119 12:04:07 2 727.3 727.3 0.118 12:04:15 3 719.0 719.0 0.116 12:04:22 4 728.8 728.8 0.118 12:04:29 Mean: 727.3 727.3 0.118 SD : 6.146 6.146 0.001 %RSD: 0.85 0.85 0.87

Element: K Seq. No.: 35 AS LOG.: Date: 11/01/2001 Sample ID: 26321

Repl SampleConc StndConc BlnkCorr Time # Mg/L /ig/L Signal 1 447.8 447.8 0.071 12:04:52 2 449.2 449.2 0.071 12:05:00 3 452.1 452.1 0.072 12:05:07 4 450.5 450.5 0.072 12:05:14 Mean: 449.9 449.9 0.072 SD : 1.858 1.858 0.000 %RSD: 0.41 0.41 0.43

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NYC-WTC_000065831

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NYC-WTC_000065831Source: NYC Law Department, mirrored locally

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