Clafication of the composition of [M+18] ions in DART mass spectra of polyethylene glycol using high-resolution mass spectrometry.

The article discusses research conducted to study the mass spectra of Polyethylene glycol using a Direct Analysis in Real Time (DART) ion source and a time-of-flight high-resolution mass analyzer. It used a time-of-flight AccuTOF mass spectrometer equipped with a DART ion source. Details on the polyethylene glycol ions are presented.