NYC-WTC_000024748
Reference document describing Method 509 procedures for laboratory analysis, dated February 14, 1992.
1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗Laboratory report showing blank test results for GCMS analysis of sample AE11157 conducted between May 13 and May 16, 2002.
NYC-WTC_000024629–000024639Folder label: “GCMS X 5/13/02 A 5/15/02”

OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document Llbrary aearen compound Report Data File : C:\MSDCHEM\1\DATA\020515\0513LB1.D Vial: 3 Acq On : 15 May 2002 1:48 pm Operator: Nefliu Sample : 05/13 lab blk Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: rteint.e Quant Method : C:\MSDCHEM\1\METHODS\SCAN020507.M (RTE Integrator) Title : Method 508 GC/MS Scan Library : C:\DATABASE\nist98.1 ********************************************************************* Peak Number 1 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 6.15 22.47 ug/1 1555840 1,4-Dichlorobenzene-d4 11.37
Hit# of 5 Tentative ID MW MolForm CAS# Qual
T 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 59 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 50 3 2-Pentanone, 4 - hydroxy - 4 - me t hyl - 116 C6H1202 000123-42-2 36 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H12O2 000540-88-5 28 Abundance Scan 523 (6.152 min): 0513LB1 .D (-516) (-) m/ z 43.10 100.00% 43
5000
101 5.80 6.00 6.20 6.40 iz— > I’T m+61 | 122 83 396 “ i'" ‘11 11' i ■' ■ 'i' ■ ■ ■ i''" i" ‘ ■ i" " i ■ ■ ■ ‘ r1" i" " i"'11"1' I" " I" " 11"11" " I" 0 20 40 60 80 100120140160180200220240260280300320340360380400 m/z 59.10 51.45% Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43
5000 1 1 i ■ ■ ■ ' i ■ ■ 1 1 i ■ ■ * 'i 1 * 1 * । 1 580 6.00 6.20 6.40 m/z 58.05 17.96% 15 101 .. 4 Al t Hir 1————83— .1 — m/z-> 0 20 40 60 80 100120140160180200220240260280300320340360380400 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 43
580 6.00 6.20 6.40 5000 m/z 101.10 16.19%
m/z—> mAH+r 83 101 wun 11'1 ■ TT ‘ » I 1 ‘ I I I * >• 1 1 * I I I I > I I I I I I I I I I I I I 11 I I I I I I I I I I I I I I I I 11 I I I I I I I 1 I I [ I J I J I I I
0 20 40 60 80 100120140160180200220240260280300320340360380400 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- ' 1 i ' ■ ' ' i ■ ' ' 1 i ' ‘ ' 1 ' I ' 43 580 6.00 6.20 6.40 m/z 41.10 7.69% 5000
101 1 83 pn »।< i!... 1111.. 11 . j.. 111,, CTTs n । > < >>]>>>> । >> >< 111111111111111111 +Prr orr J । mm TIm m/z—> 0 20 40 60 80 100120140160180200220240260280300 320 340 360 380 400 5.80 6.00 6.20 6.40
0513LB1.D SCAN020507.M Thu May 16 14:43:11 2002 Page 3
NYC-WTC_000024634
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000024748
Reference document describing Method 509 procedures for laboratory analysis, dated February 14, 1992.
1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000022495
Technical log detailing gas chromatography mass spectrometry method parameters and calibration settings from May 2002.
1 shared topics · Same agency, volume and box · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024534
Laboratory report showing blank test results for GCMS analysis of sample AE11282 conducted between May 13 and May 16, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000025499
Laboratory report showing non-detect levels for 15 volatile organic compounds in a GCMS method blank processed on May 17-21, 2002.
1 shared topics · Same agency, volume and box · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024730
Laboratory report documenting GCMS analysis of sample AE11280 conducted on May 22, 2002, including surrogate recovery data.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.990
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024427
Record of sample preparation parameters including drip rates and volumes for GCMS analysis conducted in mid-May 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.990
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024706
Laboratory report documenting GCMS analysis of sample AE11281 conducted on May 22, 2002, including surrogate recovery data.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.990
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024596
Laboratory report documenting GCMS analysis of sample AE11304 conducted on May 28, 2002, including surrogate recovery data.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.989
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024692
Laboratory report documenting GCMS analysis of sample AE11278 conducted on May 22, 2002, including surrogate recovery data.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.989
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000022561
Laboratory commentary noting no unusual compounds detected in the GCMS scan of sample AE11480 on May 29, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.988
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000045687
Laboratory report of a GC/MS blank run analyzing volatile organic compounds with results below detection limits in May 2002.
1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000046117
Laboratory report showing GCMS blank results for volatile organic compounds from sample AE10068 dated May 7-13, 2002.
1 shared non-person entities · 1 shared topics · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000024851
GCMS analysis results for sample AE10245 conducted May 28, 2002, showing unknown compounds and 2,4-DDD surrogate recovery at 86 percent.
Similarity score 0.995 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024681
Laboratory report documenting GCMS analysis of sample AE11159 conducted on May 22, 2002, including surrogate recovery data.
Similarity score 0.994 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024863
Laboratory report documenting GCMS analysis of sample AE10245 conducted on May 28, 2002, including surrogate recovery data.
Similarity score 0.990 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000022526
Laboratory report of GCMS analysis for sample AE11425 conducted on May 29, 2002.
Similarity score 0.982 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000025556
GCMS analysis page for sample AE11154 showing unknown compounds and surrogate compound recovery data.
Similarity score 0.982 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024896
Laboratory report of GCMS analysis for sample AE10247 conducted on May 28, 2002.
Similarity score 0.981 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
NYC-WTC_000024623
Department of Environmental Protection administrative record sheet for World Trade Center site activities dated May 2002.
Filed in the same folder
NYC-WTC_000024624
Laboratory report documenting GCMS analysis of sample AE11305 conducted on May 28, 2002, including surrogate recovery data.
Filed in the same folder
NYC-WTC_000024640
Laboratory report displaying calibration data for GCMS analysis of sample AE11157 conducted between May 13 and May 16, 2002.
Filed in the same folder
NYC-WTC_000024644
Laboratory report displaying reference standard results for GCMS analysis of sample AE11157 conducted between May 13 and May 16, 2002.
Filed in the same folder
NYC-WTC_000024652
GCMS analysis for sample AE11157 identifying other unknown compounds with a 2,4-DDD surrogate recovery of 91%, completed May 22, 2002.
Filed in the same folder