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Xylobiose, D- (1MEOX) (6TMS) BP2

 

Replica Mass Spectra of Xylobiose, D- (1MEOX) (6TMS) BP2

replicalib entry datedetectionmethodspecies
125 January 2005 MS-TOFM[MOR] 
1 spectrum(a)
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Spectrum Details

analyteXylobiose, D- (1MEOX) (6TMS) BP2
analyte InChIInChI=1S/C29H69NO9Si6/c1-31-30-20-23(35-41(5,6)7)26(37-43(11,12)13)24(22-33-40(2,3)4)34-29-28(39-45(17,18)19)27(38-44(14,15)16)25(21-32-29)36-42(8,9)10/h20,23-29H,21-22H2,1-19H3/b30-20-/t23-,24+,25+,26+,27-,28+,29-/m0/s1
analyte mass744.37
chromatogram12200gf_15
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 date23 July 2012
metabolite role 
retention time (sec)1,406.22
retention index (VAR5 method, n-alkanes C10–C36)2,420.59 (observed)
base peak (m/z)73
maximal intensity30,260
mass-intensity-peaks cardinality143 intensities
minimal m/z71
maximal m/z586
download JCAMP DXSpectrumJcampDx.ashx?id=f64af322-a4cf-4c61-a3e7-5f03277cb0bd
download MSPSpectrumMsp.ashx?id=f64af322-a4cf-4c61-a3e7-5f03277cb0bd

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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