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 0.998
machine-extracted · confidence unavailable · Check page ↗Laboratory report for sample AE09973 showing surrogate recovery and unknown compounds from May 9, 2002.
NYC-WTC_000044025–000044054Folder label: “GCMS X 4/25/02 A 5/7/02”

OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Library Search Compound Report
Data File C:\MSDCHEM\l\DATA\050602\9973.D Vial: 21 Acq On 7 May 2002 3:59 am Operator: Mclean Sample 4/25 Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e
Quant Method : C:\MSDCHEM\l\METHQDS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L
Peak Number 8 1,2,3-Thiadiazole, 5-methyl- Concentration Rank 13
R.T. EstConc Area Relative to ISTD R.T.
4.95 0.28 ug/L 200824 1,4-Dichlorobenzene-d4 9.94
Hit# of 5 Tentative ID MW MolForm CAS# Qual
1 1,2,3-Thiadiazole, 5-methyl- 100 C3H4N2S 050406-54-7 17 2 Trifluoroacetic acid, 2-tetrahyd.. . 198 C7H9F3O3 1000216-78-4/10 3 3-Buten-2-ol, 2-methyl- 86 C5H10O 000115-18-4/9 4 Ethyl Chloride 64 C2H5C1 000075-00-/ 9 Abundance Scan 318 (4.948 min): 9973.D (-313) (-) m/z 43.10 100.00% 43 71
5000 Mk 49 59 84 ' ■ i ■ 1 • ’ i ■ ■ ■ ■ । ■ 1 > I । । । ■
l ++ 37 4.60 4.80 5.00 5.20 111'11 I I II I I I I I I I I I I I I I I I I m/z 71.10 91.07% m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 Abundance #24596: 1,2,3-Thiadiazole, 5-methyl- 71 45 5000 39 . .1... . 1 1 i 1 1 1 ' i ' 4.60 4.80 5.00 5.20______ m/ Z 40.10 42.99% 32 58
m/z-> | I ! I > | > I I I | I I > I | I ! I I | ' I !! | I
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 11111 11 > 111 T1ttT M i. 100 1 T I rr I I I I I I I I I I I I I I I I I I I I I I I I I I I I
Abundance #24323: Trifluoroacetic acid, 2-tetrahydrofurylmethyl ester 43 71 i i । i i i r-1 rn । । । । । i k i ki i । । 4.60 4.80 5.00 5.20 5000 m/z 41.10 35.51% 31
mlz-> Abundance ttupttt 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 38 51 57 I I I I I ! I I I I I I I I
#114555: 3-Buten-2-ol, 2-methyl- 43 71 1 95 I | I | I | | | | 111v jVII I | I I i i | । I i । । i i i i । i ww“WppWww/ w 1 1 I ' 1 1 1 I ' 1 1 1 1 1 1 ' ' I 1 ' 1 ' I ' 4.60 4.80 5.00 5.20 m/z 39.10 31.67% A 5000 59 27
/z—> 18 I I | I I I ! | I I I ! | ! 111/32 „38+ + 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 53 +1111J 11111111111 86 ।111 ‘1" i " " i1" ' r 111 r1" r " 111 1,1...ill | Ml 4.60 4.80 5.00 5.20
9973.D 050102.M Tue May 07 15:51:58 2002 Page 12
NYC-WTC_000044041
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_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 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000043976
Laboratory report for sample AE09970 showing surrogate recovery and unknown compounds from May 9, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000044001
Laboratory report for sample AE09972 showing surrogate recovery and unknown compounds from May 9, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000044071
Laboratory report for sample AE09971 showing surrogate recovery and unknown compounds from May 9, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.997
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 non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000044902
Laboratory report showing gas chromatography-mass spectrometry results for unidentified organic compounds in sample AE09093 on May 10, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000045092
Laboratory report documenting gas chromatography-mass spectrometry analysis of environmental sample AE10304 conducted on May 17, 2002.
1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024014
Laboratory report showing GC/MS analysis of sample AE10985 with surrogate recovery data for 2,4-DDD.
1 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000013524
Laboratory report documenting GCMS analysis of sample AE11929 conducted on June 4, 2002.
1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000013496
Laboratory report documenting GCMS analysis of sample AE11928 conducted on June 4, 2002.
1 shared topics · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000013643
Laboratory report documenting GCMS analysis of sample AE12162 conducted on June 5, 2002.
1 shared topics · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000012989
Laboratory report presenting analytical results for target compounds and surrogate recovery data for water sample AE11907.
1 shared topics · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000012852
Laboratory report presenting analytical results for target compounds and surrogate recovery data for water sample AE11901.
Similarity score 0.977 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000013624
Laboratory report documenting GCMS analysis of sample AE12161 conducted on June 5, 2002.
Similarity score 0.977 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024014
Laboratory report showing GC/MS analysis of sample AE10985 with surrogate recovery data for 2,4-DDD.
Similarity score 0.976 (not a probability)
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.
Similarity score 0.976 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000015777
Gas chromatography-mass spectrometry results for sample AE12763 analyzed on June 12, 2002.
Similarity score 0.976 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000004935
Multi-page laboratory data sheet containing sample analysis results and metadata for DEP GCMS records from January to February 2002.
Similarity score 0.975 (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_000043745
Single-page administrative log from DEP Box 25 covering GCMS X analyses dated between April 25 and May 7, 2002.
Filed in the same folder
NYC-WTC_000043746
Fragmented page containing Method 508 headers and partial text from a DEP laboratory record dated April 2002.
Filed in the same folder
NYC-WTC_000043749
Laboratory report documenting a method blank analysis for GC/MS testing of volatile organic compounds from May 2002.
Filed in the same folder
NYC-WTC_000043756
Calibration data report for sample AE09684 listing response factors and concentrations for target analytes in May 2002.
Filed in the same folder
NYC-WTC_000043760
Reference gas chromatography-mass spectrometry analysis with manual result entry for sample AE09684, detecting multiple organic contaminants.
Filed in the same folder