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Eicosanoic acid (1TMS)

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Replica Mass Spectra of Eicosanoic acid (1TMS)

replica	lib entry date	detection	method	species
15	28 August 2012		MassBank GC 2010 Tsujimoto
1	01 May 2001	MS-TOF	M[EIGTMS]	Standard
2	07 September 2004	MS-TOF	M[6]	Standard Addition
3	01 January 2003	MS-Quad	M[2]	Standard
4	25 January 2005	MS-TOF	M[MOR]
14	30 March 2011		Fiehn_GC_2010
6	01 May 2001	MS-TOF	M[EIGTMS]	Standard Addition
7	01 May 2001	MS-TOF	M[EIGTMS]	Standard
8	19 July 2007	MS-TOF	MDN35	Reference Substance
9	01 May 2003	MS-Quad	M[2]	Spathodea campanulata P. Beauv.
14 spectrum(a)
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Spectrum Details

analyte	Eicosanoic acid (1TMS)
analyte InChI	InChI=1S/C23H48O2Si/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23(24)25-26(2,3)4/h5-22H2,1-4H3
analyte mass	384.71
chromatogram	4182DB69
citation
authors	Kopka 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 date	07 September 2004
metabolite role	METB
retention time (sec)	2,169.48
retention index (VAR5 method, n-alkanes C10–C36)	2,453.61 (predicted, according to Strehmel, N. et.al)
base peak (m/z)	73
maximal intensity	999
mass-intensity-peaks cardinality	84 intensities
minimal m/z	40
maximal m/z	384
download JCAMP DX	SpectrumJcampDx.ashx?id=ccc7ab0c-e1c4-4e7c-8ba7-90a31ae7caac
download MSP	SpectrumMsp.ashx?id=ccc7ab0c-e1c4-4e7c-8ba7-90a31ae7caac

GC-Method

name	M[2]
citation	Roessner U, Wagner C, Kopka J, Trethewey RN, Willmitzer L (2000) Plant J 23, 131-142

attribute	text	details
deconvolution	AMDIS, National Institute of Standards and Technology, Gaithersburg, MD, USA	DIRECTION:Low to High; WIDTH: 20; SUBTRACTION: two; RESOLUTION: low; SENSITIVITY: low; SHAPE: low
derivatization	MEOX; TMS	Methoxyamination:60min37°C; Trimethylsilylation:>45min37°C
detector	MS-Quad	m/z = 35-600; scans:2/s; MD 800 Thermo-Finnigan, San Jose, CA, USA
extraction	methanol:water (4:1; v/v); 15min70°C
ion source	EI	70eV
metabolic inactivation	cut; liquid nitrogen; -80°C
partitioning	methanol fraction of a methanol:water:chloroform (approx. 2:2:1, v/v/v) partitioning
RI	ALKANE	C12, C15, C19, C22, C28, C32, C36
separation	GC	COLUMN:5%diphenyl-95%dimethylpolysiloxane (arylene), 30+10m, ID:0.25mm, DF:0.25microm, Rtx-5SilMS Integra-Guard, #NA (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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