NYC-WTC_000016921
Laboratory report documenting a GCMS blank analysis for sample AD31249 conducted on January 29, 2002.
Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗GCMS blank analysis report for sample AD31129 showing components below method detection limits from January 10, 2002.
NYC-WTC_000018953–000018961Folder label: “GCMS X 12/21/01 A 1/10/02”

OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Library Search Compound Report
Data File : C:\HPCHEM\1\DATA\JAN0802\LBD.D Vial: 17 Acq On : 10 Jan 2002 5:25 am Operator: 209 GALOS Sample : gems scan 12/21 Inst : GC/MS 209 Mise : Multiplr: 1.00 MS Integration Params: LSCINT.P
Quant Method : C:\HPCHEM\1\METHODS\GCMS0103.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 2 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 2
R.T. EstConc Area Relative to ISTD R.T.
7.59 1.23 ug/1 332492 1,4-Dichlorobenzene-d4 11.53
Hit# of 5 Tentative ID MW MolForm CAS# Qual
1 2-Pentanone, A-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 83 2 Acetic acid,/1,1-dimethylethyl este 116 C6H12O2 000540-88-5 28 3 CH2=CHCH2C(®)OCH3 100 C5H802 003724-55-8 10 4 3 -Hydroxy-2 -pentanone 102 C5H10O2 003142-66-3 9 Abundance Scan 277 (7.590 mln): LBD.D (-) m/z 42.95 100.00% 43
5000 59
101 f • » » i । "I i » I । PTTPTTTIT 7.20 7.40 7.60 7.80 8,00
m/z-> ................... 37, . 10 20 30 40 +50+ 50 69 83 1 ’ I•‘‘ ‘ I ’ *' ‘11 60 70 80 90 1 i 1 1 1 ■ i 100 110 m/z 59.05 44.76% Abundance #64274: 2-Pentanone, 4-hydroxy-4-methyl- 43 -______ /... 5000 59 7.20 7.40 7.60 7.80 8.00 m/z 101.05 17.39% 27 101
m/z-> 10 20 30 40 + +4950—+ I60umpmTm 70 80 83 90 - 100 110 Abundance Asott 3C i. 1 drefv.t 43 1111111 TTnt 7.20 7.40 7.60 7.80 8.00 5000 57 m/ z 58.0,5 16.14% 101 15 27 ■ ■ i ■ ■ ■ ■ I ■ ■ ■ ■ I 1 1 1 1 I ri • ■ i ■ ■ ■ 1 i ■ ■ ■ ■ i ■ • ■ ■ i ■ ■ ■ ■ i • • ■ • i ■ ■ ■ ' i m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #1448: CH2=CHCH2C(O)OCH3 T 43 7.20 7.40 7.60 7.80 8.00 m/z 41.05 6.08% 5000
... . 381 58 72 100 ■ 1 i ‘ • i ‘ 1 ■ ■ t ■ ■ ■ • I* T1*mmurfpfrrm m/z~> 10 20 30 40 50 60 70 80 90 100 110 7.20 7.40 7.60 7.80 8.00
LBD.D GCMS0103.M Wed Feb 06 09:20:15 2002 Page 2
NYC-WTC_000018960
OCR can misread numbers and units. Confirm readings against the page image before using them.
Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000016921
Laboratory report documenting a GCMS blank analysis for sample AD31249 conducted on January 29, 2002.
Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000016375
Laboratory report of a GCMS blank run performed on February 4, 2002, to verify absence of contamination.
Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000017042
Gas chromatography-mass spectrometry blank analysis showing results below method detection limits for various organic compounds.
Same agency, volume and box · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000017883
Document showing calibration results for GCMS analysis of volatile organic compounds on December 31, 2001.
1 shared topics · Same agency, volume and box · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000019025
GCMS analysis report for sample AD31217 showing detection of unknown compounds and surrogate recovery data from February 11, 2002.
Same agency, volume and box · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000037086
Laboratory report of GCMS blank analysis for sample AD29565 conducted on December 15, 2001.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000049684
Laboratory report of a GCMS blank analysis for sample AD31586 listing chemical compounds with results below detection limits.
1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036953
Laboratory report of GCMS blank analysis for sample AD29665 conducted on December 15, 2001.
1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000049787
Reference analysis report for GCMS testing of sample AD29228 conducted on January 4, 2002.
1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000037367
Blank quality control analysis for gas chromatography-mass spectrometry, completed January 30, 2002, measuring multiple semi-volatile organic compounds below method detection…
1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036695
Calibration table and data for GCMS analysis of sample AD29522 listing target compounds and response factors.
1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036503
Laboratory report documenting GCMS blank analysis for organic compounds conducted on January 4, 2002, showing results below detection limits.
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.
Page similarity is temporarily unavailable or this page has no indexed vector.
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_000018934
Single-page document containing GCMS data or metadata associated with the WTC site in early January 2002.
Filed in the same folder
NYC-WTC_000018935
Page showing sample preparation parameters including drip rates and volumes for GCMS analysis from January 2002.
Filed in the same folder
NYC-WTC_000018941
GCMS calibration report for sample AD31129 listing response factors and concentrations for multiple organic compounds from January 10, 2002.
Filed in the same folder
NYC-WTC_000018945
Calibration table listing deuterated standards and retention times for GCMS analysis of sample AD31129 from January 9-10, 2002.
Filed in the same folder
NYC-WTC_000018948
GCMS reference analysis report for sample AD31129 listing component names and values from January 10, 2002.
Filed in the same folder