Gas chromatography-mass spectrometry analysis of sample AD28141 showing no unusual compounds detected; method acceptance ranges to be established and used.
NYC-WTC_000033865–000033873Folder label: “GCMS X 11/20/01 A 11/26/01”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Library Search Compound Report Data File C:\HPCHEM\1\DATA\DEC05 01\28141.D Vial: 9 Acq On 5 Dec 2001 8:26 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 Silane, tetramethyl- Concentration Rank 1
R.T. EstConc Area Relative to ISTD R.T.
7.64 3.72 ug/1 853618 1,4-Dichlorobenzene-d4 11.71
Hit# of 5 entative ID MW MolForm CAS# Qual
1 Silane, tetramethyl- 88 C4H12Si 000075-76-3 9 2 N-Ethylformamide 73 C3H7NO 000627-45-2 9 3 1, 3-Dioxolane, 2-pentadecyl- 284 C18H3602 004360-57-0 9 4 1 ( 3 -Dioxolane. 2 - (3 -bromo-5,5,5-tri 352 C10H16BrC13O2 000000-00-0 9 Abundance Scan 283 (7.645 min): 28141 D (-) m/ z 73.00 100.00% 73
5000 43 7.40 7 60 7.80 8.00 TIIU‘‘‘01 N 57 1 87 103 m/z 42.90 26.95% m/z-> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 Abundance #62932: Silane, tetramethyl- 73
5000 i < ■ • | • r ■ l • ■ • > l ■ ■ ■ . । i . . 7.40 7.60 7.80 800 m/z 44.95 9.98% 45 15 ,1 ,59 ' i 1 ' ■ ■ i ■ 88 T T‘‘‘TTT‘TIT nlz-> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 Abundance #292: N-Ethylformamide 33 73 7.40 7.60 7.80 8.00 5000 m/z 41.05 9.85% 44 58
15 jli 1 1 I TUT ' i r •i ■ ■111 ' TT T T T ■ । ■ ■ ■ ■ । ■' • • ।' ■ ■' । ■ ■' ■ ।'' m/z—> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 Abundance #40191:1,3-Dioxolane, 2-pentadecyl- KTrrTrTnrrrrr 73 7.40 7.60 7.80 8.00 m/z 71.00 6.31%
5000
43 57 86 99 256 283 lru TTTTTTtg’ > । V । । *TT T’TTT tt > । । । i r i ]' TITTTTTITIITIT m/z--> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 7.40 7.60 ' 7.80 ' 8.00
28141.D GCMS1126.M Thu Dec 06 08:24:51 2001 Page 1
NYC-WTC_000033872
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000033847
Analytical commentary for sample AD28163 dated December 6, 2001, noting no unusual compounds and low recovery rates for LCS standards.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033856
Analytical commentary for sample AD28141 dated December 6, 2001, noting detection of bis(2-Ethylhexyl)phthalate and low recovery rates.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000033874
Laboratory report detailing GCMS scan results and recovery rates for environmental sample AD28147 analyzed in December 2001.
1 shared non-person entities · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034227
Laboratory commentary noting high recovery rates and absence of unusual compounds in sample AD28275.
1 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036371
Laboratory GCMS analysis report for sample AD29290 conducted on January 4, 2002, showing unknown compounds.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034249
Laboratory report documenting GCMS analysis of sample AD28277 conducted between November 21 and 26, 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034302
Laboratory report documenting GCMS analysis of sample AD28434 conducted between November 21 and 26, 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035598
Lab report noting no unusual compounds but recovery issues and low pH in a water sample.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034384
Laboratory report documenting GCMS analysis of sample AD28429 conducted on November 30, 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035683
Laboratory notes stating the GCMS scan of sample AD28898 revealed no unusual compounds.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034366
Laboratory report documenting GCMS analysis of sample AD28468 conducted between November 21 and 26, 2001.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035580
GCMS scan results for sample AD28903 dated December 15, 2001, detecting bis(2-Ethylhexyl)phthalate.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000033874
Laboratory report detailing GCMS scan results and recovery rates for environmental sample AD28147 analyzed in December 2001.
Similarity score 0.998 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034938
Laboratory report detailing GCMS scan results for sample AD28651, noting low pH and recovery rates.
Similarity score 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000017782
Laboratory report detailing gas chromatography-mass spectrometry analysis of sample AD303B5 conducted on January 10, 2002.
Similarity score 0.997 (not a probability)
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
Similarity score 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000036360
Laboratory GCMS analysis report for sample AD29289 conducted on January 4, 2002, showing unknown compounds and surrogates.
Similarity score 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000034289
Gas chromatography-mass spectrometry analysis of sample AD28432 conducted November 30, 2001, detecting other unknown compounds with results referenced in comments.
Similarity score 0.997 (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_000033704
Department of Environmental Protection record logging GCMS X samples from November to December 2001.
Filed in the same folder
NYC-WTC_000033705
Fragmented page from a GCMS-related record dated between November 20 and 26, 2001, likely part of the WTC environmental monitoring series.
Filed in the same folder
NYC-WTC_000033707
Laboratory report of a GCMS blank analysis for sample AD28143 conducted on November 28, 2001, listing various organic compounds below detection limits.
Filed in the same folder
NYC-WTC_000033723
Calibration record for GCMS instrument 209 using method GCMS1126, dated November 26-28, 2001, listing standard compounds and retention times.
Filed in the same folder
NYC-WTC_000033726
Laboratory report of a GCMS reference analysis for sample AD28143 conducted on November 28, 2001, listing detected compounds and retention times.
Filed in the same folder