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Heneicosane, n-

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Replica Mass Spectra of Heneicosane, n-

replica	lib entry date	detection	method	species
2	12 May 2005		M[NIST]
1 spectrum(a)

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Spectrum Details

analyte	Heneicosane, n-
analyte InChI	InChI=1S/C21H44/c1-3-5-7-9-11-13-15-17-19-21-20-18-16-14-12-10-8-6-4-2/h3-21H2,1-2H3
analyte mass	296.57
chromatogram	NA(_58)
citation
authors	Moritz T, Umea Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-901 83 Umea, Sweden
lib entry date	25 January 2005
metabolite role	IS (RI05)
retention time (sec)	364.7
retention index (VAR5 method, n-alkanes C10–C36)	2,102.8 (predicted, according to Strehmel, N. et.al)
base peak (m/z)	57
maximal intensity	999
mass-intensity-peaks cardinality	62 intensities
minimal m/z	53
maximal m/z	297
download JCAMP DX	SpectrumJcampDx.ashx?id=228037f7-c09d-4b03-b2c7-65fea7208d73
download MSP	SpectrumMsp.ashx?id=228037f7-c09d-4b03-b2c7-65fea7208d73

GC-Method

name	M[MOR]
citation	Gullberg J, Jonsson P, Nordström A, Sjöström M, Moritz T (2004) Anal Biochem 331, 283-295

attribute	text	details
deconvolution	ChromaTOF V1.00 (Pegasus Driver 1.61), LECO, St. Joseph, MI, USA	OFFSET:NA; SMOOTHING:NA; WIDTH:2; SN:>10
derivatization	MEOX; TMS	METHOXYAMINATION: 60min60°C, 960min20°C; SILYLATION:>60min40°C
detector	MS-TOF	m/z:50-800; SCANS:30/s; Pegasus III TOF-MS; LECO, St. Joseph, MI, USA
extraction	methanol:chloroform:water (3:1:1; v/v/v) 15min at 60°C
ion source	EI	70eV
metabolic inactivation	cut; liquid nitrogen; -80°C
partitioning	none
RI	ALKANE	C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25
separation	GC	COLUMN:5%diphenyl-95%dimethylpolysiloxane, 10m, ID:0.18mm, DF:0.18µm, DB-5-MS (J&W Scientific, Folsom, CA, USA); PROGRAM: iso 2min at 70°C, ramp 40°C/min, iso 1min at 320°C; FLOW:Helium, 1.0ml/min: INJECTION:1µL, splitless, 270°C; TRANSFER:250°C; IONSOURCE:200°C

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