Abstract: A holder is described. The holder is for a sample vial and includes a base and a cap, where the holder and cap include one or more materials that are opaque or optically black. The holder includes an interior space for placement of the vial in a light-tight environment, where the holder cap includes an opening for insertion of a probe therethrough and into the sample vial. The disclosure also includes systems and methods using the holder.

Abstract: Disclosed herein are scientific instrument support systems, as well as related methods, computing devices, and computer-readable media. For example, in some embodiments, a scientific instrument support system may be an autochemometric system that automatically trains machine-learning models with spectroscopy data. The trained models can then be used to identify and/or authenticate the presence of particular substances in a sample under test.