Atmospheric pressure matrix-assisted laser desorption/ionization mass spectrometry of engine oil additive components.

ABSTRACT:

Rationale

The efficiency of lubricants strongly depends on the content of functional additives. In order to assess the chemical and structural changes taking place in the lubricating oil and its additives during operation, it is essential to develop a method for simple and prompt analysis.

Methods

Two single additives as well as a fully formulated engine oil were analysed using an atmospheric pressure matrix-assisted laser desorption/ionization (AP-MALDI) source coupled to a linear trap quadrupole Orbitrap XL hybrid tandem mass spectrometer and compared with results obtained by means of electrospray ionization (ESI) including additional low-energy collision-induced dissociation (LE-CID). The identification of additives directly from technical surfaces was simulated by using

SUBMITTER: Ramopoulou L 

PROVIDER: S-EPMC9285620 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature