Facilities and Instruments

The LCH operates a number of facilities at PSI and offers analytical services.
Gold Foil with a solid sample at near-ambient pressure in the Near Ambient Pressure Photoelectron Spectroscopy (NAPP) set-up.
X-ray photoelectron spectroscopy (XPS) performed at pressures up to 20 mbar (here referred to as near-ambient pressure photoemission, NAPP) is an emerging tool that allows probing the chemistry of surfaces that are relevant to catalysis and the environment under nearly realistic reactant and pressure conditions, thus largely overcoming the pressure gap that separates the basic UHV-based surface science technique and the conditions of real applications.

The basic concept of NAPP is that the sample is exposed to a gas or liquid environment and that the photo-electrons are sampled through a differentially pumped electrostatic lens system into an electron energy analyzer held at UHV. Scattering of the electrons by the gas phase molecules and the pressure field distor-tion around the sampling aperture into the lower pressure lens system provides constraints on the maximum pressures attainable.

  • Modular electromechanical and thermal ice drill for high-alpine glaciers (maximum 200 m depth)
  • Backpack drill for shallow cores (15 m)
  • Battery drill for horizontal cores
  • Rigid “Patagonia-proven” drilling tent
  • Cold room (-20°C)
  • Class 100 clean benches
  • Continuous ice-melting device (CIM)
  • Ion Chromatography (IC): Major inorganic and organic ions
  • Wavelength-Scanned Cavity Ring Down Spectroscopy (WS-CRDS): Stable isotopes δ18O and δD
  • Inductively Coupled Plasma Sector Field Mass Spectrometry (ICP-SFMS): Trace elements
  • Atomic Fluorescence Spectrometry (AFS): Hg
  • alpha-Spectroscopy: 210Pb dating
  • Access to a Single Particle Soot Photometer (SP2): Black Carbon
  • Access to combustion systems (THEODORE, SUNSET): OC and EC
  • Access to Accelerator Mass Spectrometry (AMS): 14C dating
We perform chemical analyses using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). With the ICP-OES concentrations of up to 70 elements in liquid samples can be analysed.