The electron capture negative ion spectra of polyperfluoropropylene oxide, high boiling perfluorokerosene, tris(perfluoroheptyl)-s-triazine and perfluorotributylamine were measured under chemical ionization conditions, to evaluate their properties for use as calibration substances. Polyperfluoropropylene oxide (trade name Fomblin) is recommended for such use.
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Andries P. Bruins (1980) studied this question.
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