Utilização de uma interface do tipo "particle beam" para a obtenção de espectros de massas de compostos pouco voláteis em solução

Abstract

Due to source contamination and wearing of instrument components problems caused by the direct insertion probe technique, a new way of introduction of low volatile compounds into mass spectrometer was tested. This new scheme comprises the introduction of the low volatile compounds solutions via a six port valve connected to a particle beam interface. Solutions of isatin were injected into this system and the best resultswere obtained with CH 2 Cl 2 , CH 3 OH and CH 3 CN. The solution inlet system has shown to be advantageous over the conventional way of direct insertion probe introduction.

Synthesis and Characterization of Two Hydrazones of Isatine and Their Some Transition Metal Complexes.

“…Ion a usually looses HCN, leading, to a fulvene ion (ion b). An arene aziridine is also observed (ion c), which arises from a second loss of CO [17][18][19][20][21][22][23]. The ions b and c are also observed in the gas-phase pyrolysis of isatin [24].…”