NYC-WTC_000043332
Laboratory report documenting GCMS blank analysis for multiple organic compounds on April 24, 2002.
1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗Quality control blank analysis for GCMS showing non-detect results for semi-volatile organic compounds with detection limits of 2.0 µg, completed April 25, 2002.
NYC-WTC_000044758–000044765Folder label: “GCMS X 4/29/02 A 5/3/02”

OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Data File : C:\HPCHEM\1\DATA\APR2502\LB.D Vial: 3 Acq On : 25 Apr 2002 2:41 pm Operator: Sample : gc/ms scan 4/18 Inst : 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P
Quant Method C:\HPCHEM\1\METHODS\GCMS0412.M (RTE Integrator) Title 209 625/TCLP calibration table Library C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 1 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 1
R.T. EstConc Area Relative to ISTD R.T.
8.19 3.05 ug/1 468154 1,4-Dichlorobenzene-d4 12.21
Hit# of 5 Tentative ID MW MolForm CAS# Qual
1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 40 2 3-Hydroxy-2-pentanone 102 C5H10O2 003142-66-3 9 3 Morpholine, 4-methyl- 101 C5H11NO 000109-02-4 9 4 2-Propanone, 1- (1-methylethoxy) - 116 C6H1202 042781-12-4 9 Abundance 7 Scan 342 (8.187 min): LB.D (-) m/z 43.05 100.00% 4)3
59 5000
101 • i ' ■ 7.80 8.00 8.20 8.40 8.60 .........................38 1) 53 83 1 I pi Dil f ii i k i i i i [ r I ' 1 ' ' i 1 1 1 1 I ''1 1 1 i ' ‘ ' 1 i 1 1 ' ' i m/ z 59.05 49.83% m/z-> 10 20 30 40 50 60 70 80 90 100 110
„L. Abundance #64274: 2-Pentanone, 4-hydroxy-4-methyl- 43
5000 II’IIT 59 7.80 8.00 8.20 8.40 8.60 m/z 101.05 19.89% 27 101 49 ,, 83 m/z-> 1 1 1 1 ' ' 1 1 10 20 I, 30 ......40 ............. 50 . P--IP-——m 60 70 80 90 +-11 , ‘ — 100 110 Abundance #1691:3-Hydroxy-2-pentanone 31 59
7.80 8.00 8.20 8.40 8.60 5000 m/z 58.05 16.42% 45 15 i I...... II....... । 'i । । * ii । । । । । । r 1 i 1 1 66 73 84 102 I 1 1 1 1 i 1'1 1 1 i ■ 1 1 r i 1 ' 1 1 i 1 1 1 1 i m/z->10 20 30 40 50 60 70 80 90 100 110 Abundance #1640: Morpholine, 4-methyl- 43 7.80 8.00 8.20 8.40 8.60 m/z 41.05 8.10%
5000 101 15 71 27 ........ .......... I ,......... I I I I I I I I I I I I I I I I I I I' 1 1 i 1 ' 56। 1 i 1 1 ‘ 1 I I 1 1 1 1 I 1 1 1 ' I ' 1 1 1 I 1 1 1 ' I । । । । । । । i । n i । 11 > p । । । । । । t
m/z-> 10 20 30 40 50 60 70 80 90 100 110 7.80 8.00 8.20 8.40 8.60
LB.D GCMS0412.M Fri Apr 26 07:55:33 2002 Page 1
NYC-WTC_000044764
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000043332
Laboratory report documenting GCMS blank analysis for multiple organic compounds on April 24, 2002.
1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043164
Laboratory report for DEP Box 25 showing GCMS blank analysis of sample AE09450 with semi-volatile organic compounds below detection limits from May 3, 2002.
1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043646
Laboratory report documenting a GC/MS blank run to check for contamination in the analytical system on May 6, 2002.
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000044621
Calibration scan report for EPA Method 625 showing retention times and deviations for deuterated standards on April 25 2002.
1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000044245
Laboratory report of a GCMS blank analysis (Sample AE07484) conducted on May 2, 2002, checking for background contamination.
1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000023207
Laboratory report of gas chromatography mass spectrometry blank analysis for volatile organic compounds conducted on May 9, 2002.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000048881
GCMS blank quality control report for sample AE08684 analyzed on April 22, 2002.
1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000049302
Laboratory report showing blank analysis results for sample AE08839 with various compounds below detection limits.
1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000048695
Calibration table listing results for various organic compounds including nitrosamines and dichlorobenzenes from April 2002.
1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000023551
Laboratory report showing GC/MS blank analysis for sample AE09683 with non-detect results for volatile organic compounds.
1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000060438
Laboratory report showing GC/MS blank analysis for Method 508 compounds with non-detectable levels.
1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000039655
Blank check results showing below method detection limits for volatile organic compounds in sample AE06412 on April 5, 2002.
1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000043058
Laboratory report for DEP Box 25 showing GCMS analysis of sample AE09391 with unknown compounds and surrogate data from May 8, 2002.
Similarity score 0.994 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043097
Laboratory report for DEP Box 25 showing GCMS analysis of sample AE09394 with unknown compounds and surrogate data from May 8, 2002.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043112
Laboratory report for DEP Box 25 showing GCMS analysis of sample AE09395 with unknown compounds and surrogate data from May 9, 2002.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000023335
Laboratory report showing GC/MS analysis results for sample AE09518 including surrogate recovery data on May 16, 2002.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043600
Summary of GC/MS analytical results for sample AE09675 processed on May 10, 2002, including surrogate recovery data.
Similarity score 0.993 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000023372
Laboratory report showing GC/MS analysis results for sample AE09446 including surrogate recovery data on May 16, 2002.
Similarity score 0.993 (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_000044378
Single-page administrative log from DEP Box 25 covering GCMS X analyses dated between April 29 and May 3, 2002.
Filed in the same folder
NYC-WTC_000044379
Fragment of a document containing unreadable text and partial headers from a DEP laboratory procedure.
Filed in the same folder
NYC-WTC_000044381
Gas chromatography-mass spectrometry blank analysis showing results below method detection limits for organic compounds.
Filed in the same folder
NYC-WTC_000044396
Calibration data for GCMS analysis of volatile organic compounds recorded on May 7, 2002.
Filed in the same folder
NYC-WTC_000044397
Calibration data for GCMS analysis of volatile organic compounds recorded on May 6, 2002.
Filed in the same folder