NYC-WTC_000034235
Laboratory commentary noting moderate recovery rates and absence of unusual compounds in sample AD28273.
1 shared topics · Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗Document / 22 pages
GCMS comments for sample AD28595, Dec 2001
Machine-extracted title · confidence 100%Laboratory analyst notes on GCMS scan results and recovery rates for sample AD28595 analyzed in early December 2001.
NYC-WTC_000034759–000034780Folder label: “GCMS X 11/23/01 A 11/29/01”
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NYC 9/11 Public Portal Document
Library Search Compound Report
Data File C:\HPCHEM\l\DATA\DEC0601\28594.D Vial: 3 Acq On 6 Dec 2001 1:05 pm Operator: 209 GALOS Sample re extract Inst : GC/MS 209 Mise : Multiplr: 1.00 MS Integration Params: LSCINT.P
Quant Method : C:\HPCHEM\1\METHODS\GCMS1126.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 1 N-Ethylformamide Concentration Rank 1
R.T. EstConc Area Relative to ISTD R.T.
7.61 2.83 ug/1 1036840 1,4-Dichlorobenzene-d4 11.67
Hit# of 5 Tentative ID MW MolForm CAS# Qual
1 N-Ethylformamide 73 C3H7NO 000627-45-2 9 2 Silane, bet rame t hyl- 88 C4H12Si 000075-76-3 9 3 1,3-Dic olane, 2-methyl- 88 C4H802 000497-26-7 5 4 Ether 74 C4H10O 000060-29-7 4 Abundance/ Scan 279 (7,606 min): 28594.D (-) m/z 73/00 100.00% 73
5000 43 7.20 7.40 7.60 7.80 8.00 4R ।"" । ■ ■'11 1T hr 87 103 207 m/z 43.0,5 TTTTTTTT i r f 111111111j 111 . 11. .. (11111111111111111111111 miz-x__ 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200210 25.56% Abundance #292: N-Ethylformamide 30 73
5000 44 58 7.20 7.40 7.60 7.80 8.00 m/z 41.05 9.69% 15 mp Tm TUU................ I'''' 1111111' 111" I' 11111111111' 111111' m/z-> 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200210 Abundance #845: Silane, tetramethyl- 73 " > । । i -----2 ,=== ill 11 7.20 7.40 7.60 7.80 8.00 5000 m/z 45.05 9.36%
45 ...... ..................................................................................................................................... m/z-> 10 20 30 40 50 60 7080 90 100 110 120130140150160170 180 190200 210 Abundance #62902:1,3-Dioxolane, 2-methyl- T ' T ■ri | I I I i J ITT T ! I I 73 7.20 7.40 7.60 7.80 8.00 m/z 71.00 6.52% 5000
miz-> 27 43 58 87 r 11 r । n r n i r In 11111 m Im m mm m till — 111111111111111 h 11 h 11111 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 7.20 .L 7.40 7.60 7.80 8.00
28594.D GCMS1126.M Fri Dec 14 16:24:25 2001 Page 1
NYC-WTC_000034777
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NYC-WTC_000034777Source: NYC Law Department, mirrored locally
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Lab notes for sample AD29141 indicate detection of bis(2-Ethylhexyl)phthalate and one LCS compound outside acceptance range.
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1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036137
Laboratory report noting GCMS scan results for sample AD29233 with phthalates and nonadecanol detected.
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036311
Laboratory analysis report for sample AD29285 conducted on December 28, 2001, including surrogate recovery data.
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036114
Laboratory report noting GCMS scan results for sample AD29230 with one compound recovery outside acceptance range.
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035808
Laboratory analysis notes for sample AD29023 indicating no unusual compounds detected in GCMS scan; one of forty-three compounds in quality control standard outside acceptance rang
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035640
Lab report noting bis(2-Ethylhexyl)phthalate detection, recovery issues, and low pH.
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036325
Laboratory GCMS analysis report for sample AD29229 conducted on December 28, 2001, including surrogate recovery data.
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036220
Blank sample results showing non-detect levels for target compounds during December 2001 laboratory testing.
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034908
Repeat gas chromatography-mass spectrometry analysis of sample AD28596 after re-extraction, confirming bis(2-Ethylhexyl)phthalate at 0.36 ug/L with improved standard recovery of 89
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗Filed elsewhere
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NYC-WTC_000034731
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