Logo specs-groupDetail

Food and Food Chemistry

XPS for surface analytics in near ambient conditions is compatible with most materials, usually not suitable for such a surface sensitive technique. Using NAP XPS allows to collect a chemical fingerprint of the topmost atoms covering a substance, hence providing sensitive information of smallest contamination on surfaces. 

In food industry and food chemicals, knowledge about surface contamination within processes is crucial, as smallest residuals can cause harmful reactions in the metabolism. Such surface contaminations are usually invisible to most established techniques like EDX or XRF, as the surface only marks a tiny fraction of the studied material. In XPS, only the first atomic layers are considered, making this technology ideal for quality and contamination control. 

RELATED PRODUCTS

2

APPLICATION NOTES

XPS surface analysis of Italian hard cheese with EnviroESCA
XPS surface analysis of Italian hard cheese with EnviroESCA
This application note presents how EnviroESCA can be used to analyze the surface of food samples, e.g., Italian hard cheese. Due to the advanced vacuum system of EnviroESCA the surface analysis of Food samples even in the presence of fat and oils or volatiles is performed without problems.
download PDF
XPS surface analysis of sesame seeds with EnviroESCA
XPS surface analysis of sesame seeds with EnviroESCA
Results of the surface analysis of untreated food samples, e.g., sesame seeds, measured with EnviroESCA are presented. High resolution and high quality spectra are recorded using Environmental Charge Compensation even for samples in bulk quantities.
download PDF
XPS surface analysis of a coffee bean with EnviroESCA
XPS surface analysis of a coffee bean with EnviroESCA
The Analysis of food and natural products under environmental conditions is of great importance due to their daily use and direct interaction with humans during consumption. In this study we investigated a roated coffee bean. Charge compensation of this insulating natural product is accomplished by Environmental Charge Compensation enabling X-ray photoelectron spectroscopy on such biological material with ease.
download PDF
High-Resolution Imaging and Spectroscopy of Water on NaCl(001) Surface
High-Resolution Imaging and Spectroscopy of Water on NaCl(001) Surface
The interaction of water with the surfaces of solid ma-terials is ubiquitous. Many remarkable physical and chemical properties of water/solid interfaces are gov-erned by H-bonding interaction between water mole-cules. As a result, the atomic-scale description of H-bonding structure and dynamics is one of the most important fundamental issues in water science. Ideally, attacking this problem requires the ability to access the internal degrees of freedom of water molecules, which remains a great challenge due to the light mass and small size of hydrogen.
download PDF
Near-ambient pressure XPS of hydrated Escherichia coli samples with EnviroESCA
Near-ambient pressure XPS of hydrated Escherichia coli samples with EnviroESCA
This application note presents how EnviroESCA can be used to analyze E. coli biofilms on silicon under near ambient pressure conditions in various states of hydration. Such investigations of the outer bacterial cell surface in their hydrated state are essential for studying biological interfaces at work.
download PDF
XPS surface chemical analysis of bacterial samples with EnviroESCA
XPS surface chemical analysis of bacterial samples with EnviroESCA
This application note presents how EnviroESCA can be used to analyze bacterial samples under near ambient pressure conditions in various states of hydration using different levels of humidity. Such investigations of bacterial cell wall surfaces in their hydrated state are essential for studying biological interfaces at work.
download PDF
XPS surface analysis of cuttlefish bone samples with EnviroESCA
XPS surface analysis of cuttlefish bone samples with EnviroESCA
Biological mineral samples from a cuttlefish (sepia) were studied using EnviroESCA. The results of surface chemical analysis of the native and ion implantation treated samples are presented. Neutralization of the insulating biomaterial is accomplished by Environmental Charge Compensation enabling X-ray Photoelectron Spectroscopy (XPS) on tissue samples.
download PDF
Close
Your web browser is deprecated
This could effect the presentation and some functions of our website.