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Pyruvic acid (1MEOX) (1TMS)

 

Replica Mass Spectra of Pyruvic acid (1MEOX) (1TMS)

replicalib entry datedetectionmethodspecies
1630 March 2011  Fiehn_GC_2010 
119 July 2007 MS-TOFMDN35Reference Substance
215 March 2005 MS-TOFM[6]Reference Substance
319 July 2007 MS-TOFVAR5Reference Substance
1503 November 2010  Schomburg_GC_2010 
516 June 2005 MS-TOFM[STR] 
1728 August 2012  MassBank GC 2010 Tsujimoto 
911 September 2005  M[FAME4090]Standard
1012 May 2005  M[NIST] 
1407 January 2011 MS-TOFVAR5 
13 spectrum(a)
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Spectrum Details

analytePyruvic acid (1MEOX) (1TMS)
analyte InChIInChI=1S/C7H15NO3Si/c1-6(8-10-2)7(9)11-12(3,4)5/h1-5H3/b8-6+
analyte mass189.28
chromatogram10340gf_13
citationNA
authorsKopka J, Max Planck Institute of Molecular Plant Physiology, Department of Molecular Plant Physiology (Prof. Willmitzer L), Am Muehlenberg 1, D-14476 Golm, Germany
lib entry date10 December 2010
metabolite role 
retention time (sec)433.73
retention index (VAR5 method, n-alkanes C10–C36)1,035.94 (observed)
base peak (m/z)73
maximal intensity110,404
mass-intensity-peaks cardinality123 intensities
minimal m/z70
maximal m/z586
download JCAMP DXSpectrumJcampDx.ashx?id=64977f4a-a155-47a7-8d4e-31ec45eb9af5
download MSPSpectrumMsp.ashx?id=64977f4a-a155-47a7-8d4e-31ec45eb9af5

GC-Method

nameVAR5
citationKopka J, Max Planck Institute of Molecular Plant Physiology, Department of Molecular Plant Physiology (Prof. Willmitzer L), Am Muehlenberg 1, D-14476 Golm, Germany
attributetextdetails
deconvolutionChromaTOFOFFSET: "just above noise"; SMOOTHING: 20; PEAK WIDTH: 6; S/N: 2
derivatizationMEOX; TMSMETHOXYAMINATION: 90min at 30°C; TRIMETHYLSILYLATION: 30min at 37°C
detectorMS-TOFm/z = 70-600; scans:20/s; Pegasus III TOF mass spectrometer
extractionwater:chloroform (2:1; v/v) 15min at 70°C
gas chromatographAgilent GC 6890 
ion sourceEI70eV
mass spectrometry instrumentPegasus III TOF mass spectrometer 
metabolic inactivationshock-frozen in liquid nitrogen 
RIALKANEC10, C12, C15, C18, C19, C22, C28, C32, C36
separationGCCOLUMN:5%phenyl-95%dimethylpolysiloxane, 30+10m, ID:0.25mm, DF:0.25µm, 5PDM VF-5ms (Varian, Darmstadt, Germany); PROGRAM:iso1min 70°C, ramp 9°C/min, iso 5min 350°C; FLOW:Helium, 0.6mL/min; INJECTION:1µL, splitless, 230°C; TRANSFER:250°C; IONSOURCE:250°C
protocolpropertyvalue
extractionwater chloroform(2:1; v/v) 15min at 70°C
derivatizationderivatisationMETHOXYAMINATION, 90min at 30°C
derivatizationderivatisationTRIMETHYLSILYLATION, 30min at 37°C
separationIon source temperature250°C
separationColumn length30+10m (analytical column + guard column)
separationColumn inner diameter0.25mm
separationTemperature programisotherm 1min 70°C, ramp 9°C/min, isotherm 5min 350°C
ion sourceelectron ionization70eV
detectorLECO instrument modelPegasus III TOF mass spectrometer
detectorhighest observed m/zm/z = 600
detectorlowest observed m/zm/z = 70
detectorsampling frequency20 scans/s
detectormass analyzer typeMS-TOF
deconvolutionmoving average smoothing20
deconvolutionsoftwareChromaTOF
deconvolutionsignal-to-noise ratio2
RIRetention indexdecane
RIRetention indexdodecane
RIRetention indexpentadecane
RIRetention indexoctadecane
RIRetention indexnonadecane
RIRetention indexdocosane
RIRetention indexoctacosane
RIRetention indexdotriacontane
RIRetention indexhexatriacontane
ChromatographyChromatographyAgilent GC 6890

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