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Lab report: Potassium analysis, Oct 2001

Machine-extracted title · confidence 95%

Laboratory report listing sample IDs and analyst details for potassium testing conducted in October 2001.

NYC-WTC_000065212–000065232

Folder label: “K

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NYC 9/11 Public Portal Document

Element: K Seq. No.: 36 AS Loc.: Date; 10/22/2001 San^le ID: QCS

Repl SampleConc StndConc BlnkCorr Time # Atg/i* Signal 1 535.1 535.1 0.085 12:35:00 2 527.2 527.2 0.084 12:35:07 3 542.6 542.6 0.087 12:35:15 4 526.5 526.5 0.084 12:35:22 Mean: 327 532.8 0.085 SD : 7.595 0.001 %RSD: 1.43 1.43 1.36

Element: No.: 37 AS Loc.: Date: 10/22/2001 Sample 1D:Y24945

Repl San^jleConc StndConc BlnkCorr Time # /ig/L pg/L Signal 1 599.4 599.4 0.095 12:35:45 2 600.6 600.6 0.095 12:35:52 3 595.2 595.2 0.094 12:35:59 4 666.2 0.105 12:36:06 Mean: 615.3 615.3 0.098 SD : 34.01 34.01 0.005 %RSD: 5.53 5.53 5.30

Element: K Seq No.: 38 AS Loc.: Date: 10/22/2001 San^le ID: 24945

Repl SanqoleConc ^StndConc BlnkCorr Time # /^g/L Mg/L Signal 1 584.1 584.1 0.093 12:36:21 2 717.0 717.0 0.113 12:36:28 3 697.9 697.9 0.110 12:36:35 4 713.2 713.2 0.112 12:36:42 Mean: 678. O' 678.0 0.107 SD ; 63.17 63.17 0.010 %RSD: 9.32 9.32 8.96

Element: K Seq No.; 39 AS Loc.: Date: 10/22/2001 Sample ID: 24945

Repl SarapleConc StndConc BlnkCorr Time # Ag/i* gg/L Signal 1 826.2 826.2 0.130 12:36:53 2 731.9 731.9 0.115 12:37:01 3 702.8 702.8 0.111 12:37:08 4 683.2 683.2 0.108 12:37:15 Mean; 736.0 736.0 0.116 SD ; 63.37 63.37 0.010 %RSD; 8.61 8.61 8.31

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NYC-WTC_000065222

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NYC-WTC_000065222Source: NYC Law Department, mirrored locally

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