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Tryptophan (2TMS)

 

Replica Mass Spectra of Tryptophan (2TMS)

replicalib entry datedetectionmethodspecies
119 July 2007 MS-TOFMDN35Reference Substance
219 July 2007 MS-TOFVAR5Reference Substance
416 June 2005 MS-TOFM[STR] 
1230 March 2011  Fiehn_GC_2010 
528 June 2002 MS-QuadM[7]Standard
1103 November 2010  Schomburg_GC_2010 
819 July 2007 MS-TOFMDN35Reference Substance
911 September 2005  M[FAME4090]Standard
8 spectrum(a)
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Spectrum Details

analyteTryptophan (2TMS)
analyte InChIInChI=1S/C17H28N2O2Si2/c1-22(2,3)19-16(17(20)21-23(4,5)6)11-13-12-18-15-10-8-7-9-14(13)15/h7-10,12,16,18-19H,11H2,1-6H3/t16-/m0/s1
analyte mass348.59
chromatogram4132GX19
citation 
authorsLiebig F, Erban A, Max Planck Institute of Molecular Plant Physiology, Department of Molecular Plant Physiology (Prof. Willmitzer L), Am Muehlenberg 1, D-14476 Golm, Germany
lib entry date15 March 2005
metabolite roleMETB
retention time (sec)1,393.54
retention index (VAR5 method, n-alkanes C10–C36)2.197,43 (predicted, according to Strehmel, N. et.al)
base peak (m/z)73
maximal intensity999
mass-intensity-peaks cardinality115 intensities
minimal m/z70
maximal m/z350
download JCAMP DXSpectrumJcampDx.ashx?id=2946a7cd-7cc2-4045-8c3d-d7a62796ed6c
download MSPSpectrumMsp.ashx?id=2946a7cd-7cc2-4045-8c3d-d7a62796ed6c

GC-Method

nameM[6]
citationErban A, Schauer N, Fernie AR, Kopka J (2006) In: Weckwerth W (ed): Methods in Molecular Biology Vol., Humana Press Inc., Totowa, USA
attributetextdetails
deconvolutionChromaTOF V1.00 (Pegasus Driver 1.61), LECO, St. Joseph, MI, USAOFFSET:1_SMOOTHING:3_WIDTH:6_SN:>2
derivatizationMEOX; TMSMethoxyamination:90min40°C; Trimethylsilylation:45min40°C
detectorMS-TOFMZ:70-600; SCANS:20/s; Pegasus III TOF-MS; LECO, St. Joseph, MI, USA
extractionmethanol:water (4:1; v/v); 15min70°C 
ion sourceEI70eV
metabolic inactivationcut; liquid nitrogen; -80°C 
partitioningmethanol fraction of a methanol:water:chloroform (approx. 2:2:1, v/v/v) partitioning 
RIALKANEC12, C15, C18, C19, C22, C28, C32, C36
separationGCCOLUMN:5%diphenyl-95%dimethylpolysiloxane (arylene), 30+10m, ID:0.25mm, DF:0.25microm, Rtx-5SilMS Integra-Guard, #525560 (Restek, Bad Homburg, Germany); PROGRAM:iso1min70°C, ramp9°C/min, iso5min350°C; FLOW:Helium, 0.6ml/min; INJECTION:1microL, splitless, 230°C; TRANSFER:250°C; IONSOURCE:250°C

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