Many types of processing involve some degree of sample handling. In industries where cleanliness is critical to quality, disposable gloves are widely used to protect critical surfaces from inadvertent human sourced contamination. If you are relying on your gloves to provide a clean barrier between skin and a critical surface, you must be confident that the barrier itself is not a problem.
X-ray photoelectron spectroscopy (XPS), also called Electron Spectroscopy for Chemical Analysis (ESCA), provides a sensitive tool for quantitatively evaluating the cleanliness of the gloves that you depend on.
Figure 1 shows the results from the XPS analysis of five different brands of disposable gloves.