Inkjet automated single cells and matrices printing system for matrix-assisted laser desorption/ionization mass spectrometry

Inkjet cell introduction for matrix assisted laser desorption/ionization (MALDI) mass spectrometry. Single type cells were printed on the MALDI applicable substrate, the substrate was directly inserted to mass spectrometer after sample and matrix printing. 2, 5-dihydroxybenzoic acid was selected as a matrix for lipid detection.231