The ICP-OES aspirates a liquid sample into a plasma and the optics measure the light emitted on user-defined wavelengths. The Genesis uses an internal self-calibration procedure to ensure good wavelength intensity recognition. Customized methods can be developed for specific elements and for specific matrices. Typical methods use a 4-point calibration standards of single or multiple elements (or a combination of both to allow detection and correction of interferences).
- Spectro Genesis ICP-OES, side-on plasma optics, SmartAnalyzer software
- Nebulizers: crossflow, modified Lichte nebulizer (currently in trials)
- uses argon gas to purge the system
Sample type: elements in liquid samples (water or acid-digested solids including animal tissue, soil, plants, coatings, etc.)
Elements: Ag, Al, As, B, Ba, Be, Ca, Cd, Ce, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, SiO2, Sn, Sr, Ti, Tl, V, Zn, Zr
- instrument detection limits are moderately low (generally mg to µg L-1)
- depends upon the sample and varies per element
- depends upon the nebulizer used (modified Lichte gets lower detection limits for some elements, but it is sensitive to salts)
- Available soon: list of typical instrument detection limits (crossflow nebulizer)
Matrix interferences: Some elements are subject to significant interferences during analysis and may be more difficult to determine depending on the sample matrix (including, but not limited to Ag, Se, Tl).
- inorganic samples and matrices
- free of particulates that could clog the instrument
- sample volume 10 ml (5 ml is the absolute minimum and allows for one pass of the ICP)
- no hydrofluoric acid