Hamamatsu Photonics have added four new products to their “DIUTHAME (Desorption Ionisation Using Through Hole Alumina MEmbrane)” series of ionisation-assisting substrates, that drastically cut the pretreatment time needed to ionise samples by laser in mass spectrometry. These new products include a miniature type, ideal for mass spectrometry imaging of small samples and a glass-slide size type for mass spectrum measurement that can be directly set into spectrometer holders. The expanded lineup for the DIUTHAME series now includes a total of nine types, allowing users to select the DIUTHAME that best matches the size of samples to measure with MALDI-TOF MS.