Near ambient pressure photoelectron spectroscopy of fruit and vegetables

Application Note #000404

In this note we present first NAP-XPS results from a fresh tomato and apple using the EnviroESCA. Portions of tomato and apple were introduced into the system and the pressure was stabilized at 10 mbar. Different regions on the surface were studied and the photoelectron spectra show significant chemical differences between these regions. This study demonstrates the unique NAP XPS capabilities of the EnviroESCA and extends the field of applications to (processed) food samples and other natural or biological samples that could not be studied by XPS up to now.

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