Mass spectrometry as a catalyst for inclusive design practices

Amid introductory training in the use of a liquid microjunction-surface sampling probe (LMJ-SSP) for ambient ionization mass spectrometry (AIMS) and associated processes such as sample preparation, the inaccessibility of the analytical chemistry laboratory space for persons with physical disabilities became evident. Guided by personal experiences living with tremors, a constant involuntary oscillation of the hands, a series of low-cost 3D-printed adaptive tools were developed as aids for students and researchers with disabilities affecting the fine motor skills. The designs concentrate on routine sample preparation practices required for AIMS methods, including solid sample preparation, liquid sample preparation into small vials, and the opening of small vials. Grips and guides for solid sample scooping tools, modified vial holders that accommodate tremors of the hands, and openers for small vials were designed. Open-source CAD platforms were used exclusively to limit financial barriers to inclusive practice. Once developed, these tools were applied in experimental procedures using the LMJ-SSP, and a substantial increase in self-efficacy was experienced. The purpose of this work was to cultivate tangible, meaningful change within the chemistry laboratory space to further democratize access to analytical methods, and to promote the value of inclusive practices.