Inductively-Coupled Plasma Optical Emission Spectrometry

Analyte

• Typically liquid aqueous samples
• Solid organic or inorganic samples after micro wave digestion

Equipment

• ICP OES Optima 2100 DV (Perkin-Elmer)
• Mikrowellenaufschlussgerät Start 1500 (MWS Vertriebs GmbH)

Targets

• Multi element analysis - qualitative and quantitative determination of metal ions, Phosphor und Sulfur

Application

• Environmental analysis  - water- and effluent water testing
• Trace analysis in core and sludge samples
• Trace analysis in organic und polymer matrices
• Determination of purity
• Quality control

Measuring principle

• Injecting a liquid sample into the nebulizer of the ICP OES
• Introducing the aerosol into an argon plasma
• Formation of atoms and ions at temperatures of 6000 – 8000 K
• Complete atomization of the sample
• Excitation of atoms and ions to emit  its characteristic radiation by the argon plasma
• Spectral separation of the emitted light according to wavelength in the spectrometer
• Identifying the elements on the basis of the wavelength of the emitted light
• Quantitative information by measuring the intensity of the emitted light