NYC-WTC_000044001
Laboratory report for sample AE09972 showing surrogate recovery and unknown compounds from May 9, 2002.
1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗Gas chromatography-mass spectrometry blank analysis showing results below method detection limits for organic compounds.
NYC-WTC_000044433–000044446Folder label: “GCMS X 4/29/02 A 5/1/02”

OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Tentatively Identified Compound (LSC) summary
Operator ID: Mclean Date Acquired: 1 May 2002 5:02 pm Data File: C:\MSDCHEM\1\DATA\050102\0429LB.D Name: Mise: Method: C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title: 508 Modified GC/MS scan Library Searched: C:\DATABASE\NIST98.L
--Internal Standard-- TIC Top Hit name RT EstConc Units Response # RT Resp Cone
1,3-Dioxol-2-one 3.71 0.3 ug/L 144230 1 9.93 16956800 40.0 1-Propyne 3.86 0.2 ug/L 85433 1 9.93 16956800 40.0 l-Silacyclo-3-pen... 5.02 0.3 ug/L 115277 1 9.93 16956800 40.0 2-Pentanone, 4-hy... 5.96 10.9 ug/L 4605990 1 9.93 16956800 40.0 Anthracene, 2-met... 22.58 0.3 ug/L 157462 4 22.95 23405600 40.0 Anthracene-d10- 23.11 0.5 ug/L 298855 4 22.95 23405600 40.0 Methyl erythro-4-... 34.96 0.2 ug/L 79330 6 34.71 15053800 40.0
0429LB.D 050102.M Thu May 02 14:53:47 2002 Page 11
NYC-WTC_000044446
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_000044001
Laboratory report for sample AE09972 showing surrogate recovery and unknown compounds from May 9, 2002.
1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000045048
Laboratory report showing blank analysis results for volatile organic compounds in sample AE10303 on May 9, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000045547
Laboratory report of a GC/MS blank run analyzing volatile organic compounds with results below detection limits in May 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043938
Gas chromatography-mass spectrometry analysis report for sample AE09968, detecting unknown compounds and 2,4-DDD surrogate with 78% recovery, dated May 9, 2002.
1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000044994
Laboratory report showing gas chromatography-mass spectrometry results for unidentified organic compounds in sample AE10204 on May 10, 2002.
1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043958
Laboratory report for sample AE09969 showing surrogate recovery and unknown compounds from May 9, 2002.
1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000045643
Laboratory report detailing GC/MS analysis of sample AE10609 including surrogate recovery data in May 2002.
1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043893
Laboratory report for sample AE09771 showing surrogate recovery and unknown compounds from May 9, 2002.
1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000045155
Laboratory report documenting gas chromatography-mass spectrometry analysis of environmental sample AE10307 conducted on May 17, 2002.
1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000023843
Laboratory report showing non-detectable levels of nitrosamines and other contaminants in a GC/MS blank sample AE10901.
1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000025054
Laboratory report showing GCMS blank analysis for sample AE11379 conducted on May 21, 2002, with results below minimum reporting levels.
1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000022857
GCMS analytical report for environmental sample AE09155 including surrogate compound data from May 15, 2002.
1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000024070
Gas chromatography-mass spectrometry analysis of sample AE10895 with 91% surrogate recovery for 2,4-DDD, conducted May 21, 2002.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000023439
Laboratory report showing GC/MS analysis results for sample AE10137 including surrogate recovery data on May 14, 2002.
Similarity score 0.992 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043869
Laboratory blank report for sample AE09771 showing non-detectable levels of target compounds from May 8, 2002.
Similarity score 0.991 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000025347
Laboratory report showing non-detect levels for 15 volatile organic compounds in a GCMS method blank processed on May 23, 2002.
Similarity score 0.991 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043958
Laboratory report for sample AE09969 showing surrogate recovery and unknown compounds from May 9, 2002.
Similarity score 0.991 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024153
Document noting low recovery in GCMS scan of sample AE10205 and subsequent re-extraction yielding 85% recovery.
Similarity score 0.991 (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_000044430
Single-page administrative log from DEP Box 25 covering GCMS X analyses dated between April 29 and May 1, 2002.
Filed in the same folder
NYC-WTC_000044431
Fragment of a document containing unreadable text and partial headers from a DEP laboratory procedure.
Filed in the same folder
NYC-WTC_000044447
Instrument qualification report for DFTPP showing pass/fail status for mass spectral limits on April 30, 2002.
Filed in the same folder
NYC-WTC_000044449
Calibration data for GCMS analysis of volatile organic compounds recorded on May 2, 2002.
Filed in the same folder
NYC-WTC_000044451
Calibration scan report showing retention times and deviations for organic compounds on May 2 2002.
Filed in the same folder