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MassBank Record: MSBNK-MSSJ-MSJ00743

Citric acid; GC-EI-QQ; MS2; POSITIVE; CID 10 V; 4 TBDMS-derivative; [M-189]+

Mass Spectrum
Chemical Structure
Generated by the Chemistry Development Kit (http://github.com/cdk)

ACCESSION: MSBNK-MSSJ-MSJ00743
RECORD_TITLE: Citric acid; GC-EI-QQ; MS2; POSITIVE; CID 10 V; 4 TBDMS-derivative; [M-189]+
DATE: 2021.10.27
AUTHORS: Nobuyuki Okahashi and Fumio Matsuda, Osaka University
LICENSE: CC BY
COPYRIGHT: Nobuyuki Okahashi and Fumio Matsuda, Osaka University
PUBLICATION: Nobuyuki Okahashi et al. Mass Spectrometry 2019 vol. 8, A0073.
COMMENT: Annotation of fragment ions (PK$ANNOTATION) is based on Supplemental material page 21 of the publication.
COMMENT: This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 21HP8020 to the Mass Spectrometry Society of Japan.

CH$NAME: Citric acid
CH$COMPOUND_CLASS: Natural Product; tricarboxylic acid
CH$FORMULA: C6H8O7
CH$EXACT_MASS: 192.02701
CH$SMILES: OC(=O)CC(O)(CC(O)=O)C(O)=O
CH$IUPAC: InChI=1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
CH$LINK: CAS 77-92-9
CH$LINK: CHEBI 30769
CH$LINK: CHEMSPIDER 305
CH$LINK: INCHIKEY KRKNYBCHXYNGOX-UHFFFAOYSA-N
CH$LINK: PUBCHEM CID:311

AC$INSTRUMENT: GCMS-TQ8040 (Shimadzu, Kyoto, Japan)
AC$INSTRUMENT_TYPE: GC-EI-QQ
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE POSITIVE
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 10 V
AC$MASS_SPECTROMETRY: COLLISION_GAS Ar (200 kPa)
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE CID
AC$MASS_SPECTROMETRY: ION_SOURCE_TEMPERATURE 200 C
AC$MASS_SPECTROMETRY: SCAN_RANGE_M/Z 50-600
AC$CHROMATOGRAPHY: COLUMN_NAME DB-5MS+DG (Agilent Technologies, Santa Clara, CA, USA)
AC$CHROMATOGRAPHY: INJECTION_TEMPERATURE 250 C
AC$CHROMATOGRAPHY: OVEN_TEMPERATURE 70 C (Duration 2 min)-280 C (rate:10 C/min; Duration 3 min)
AC$CHROMATOGRAPHY: TRANSFARLINE_TEMPERATURE 250 C

MS$FOCUSED_ION: DERIVATIVE_FORM C30H64O7Si4
MS$FOCUSED_ION: DERIVATIVE_MASS 648.37291
MS$FOCUSED_ION: DERIVATIVE_TYPE 4 TBDMS
MS$FOCUSED_ION: PRECURSOR_M/Z 459.20489

PK$SPLASH: splash10-006t-4911100000-e113580e915dab099eec
PK$ANNOTATION: m/z formula exact_mass error(ppm)
  299.05 C13H23O4Si2+ 299.11294 210
PK$NUM_PEAK: 14
PK$PEAK: m/z int. rel.int.
  67.05 6748 31
  73.1 144764 676
  115.15 71162 332
  147.1 213756 999
  148.95 2883 13
  189.15 22125 103
  253.15 54317 253
  256.9 2246 10
  299.05 4950 23
  327.1 20039 93
  328.8 4178 19
  387.3 18855 88
  458.25 2587 12
  459.2 36086 168
//

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