Perfluorotri-«-butylamine

Creaser, C.S., West, S.K., Wilkins, J.P.G. (2000) Reactions of Perfluorotri-n-butylamine Eragment Ions in the Quadrupole Ion Trap the Origin of Artefacts in the Perfluorotri- -butylamine Calibration Spectrum. Rapid Commun. Mass Spectrom. 14 538-540. 

M, Minnesota Mining and Manufacturing Company, St. Paul, Minn. 55119. The checker reports substantially identical results with perfluorotri-terf-butylamine on Chromasorb P. 

Figure 5. Dynamic range enhancement via SWIFT multiple-ion ejection. Top Normal broad-band heterodyne-mode FT/ICR mass spectrum of perfluorotri-n-butylamine. Middle Same spectrum, in which the vertical scale has been expanded such that the peak at m/z = 503 is full scale. Bottom FT/ICR mass spectrum of the same sample, obtained following prior SWIFT multiple-ion ejection of the (23) peaks whose magnitude-mode peak heights exceeded a threshold of 1.6 % of the height of the biggest peak 1n the original spectrum. Note the higher mass resolution, reduced noise, and flatter baseline in the SWIFT multiple-ion ejected spectrum.

TRMS can provide information about possible artifacts related to the operation of standard analytical equipment (including ion sources and mass analyzers). Perfluorotri-n-butylamine (PFTBA) is often used as a calibration standard in EI-MS. Greaser et al. [206] observed products of the reaction of PFTBA ions with neutral species (residual water) in an ion trap. They monitored the buildup of the product of this reaction on a... 

The fragment at m/z 205 is an obvious phosphite bond cleavage product, the other fragment was confirmed to be C13H19O (191.143 nm) by accurate-mass measurement (191.145 nm) by internal calibration against ions of seven m/z ratios from perfluorotri-n-butylamine. 

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