Identification of Modified and Unmodified Lipophilic Β-Diketones Using Electrospray Ionisation Mass Spectrum (Esi-Ms) by Kaana Asemave in Archives of organic and inorganic chemical sciences in Lupine Publishers
Identification of modified and unmodified lipophilic p-dketone was
carried out successfully using positive ion mode of ESI-MS. The ESI-MS
spectra were obtained using LC - Agilent 1260 Infinity with MS - Bruker
micro OF time of flight MS in mass range of m/z 200-900, capillary
voltage 4500V, nebuliser pressure 21.8 psi, dry gas flow 8L/min and dry
gas temp 433K. Potassium adduct ion 503.4437m/z was found for the
14,16-Hentriacontanedione (Htd); whereas, the itaconate modified Htd
(Ita) gave a confirmatory sodium species 645.5051m/z. The ion 589.4794
m/z was for potassium species of the singly added acrylate modified Htd
(Mas). Meanwhile, the doubly added acrylate modified Htd (Mad) formed
the potassium adduct ion of 675.5179m/z. However, protonated species for
these molecules were not obtained.
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