There are other benefits to the extended range. For example, it measures a more sensitive line for lithium near 675 nm to achieve limits of detection in the 2-5 ppm range. It also measures a more sensitive, and interference-free line for potassium (K). The more traditional potassium lines have heavy iron interference, whereas the line used by the Z-903 is free of such interference.
The Z-903 is most widely used for mineral exploration including lithium in both hard rock and brines. It is also used in forensics, authentication, archeology and oil/gas exploration due to the wide elemental range.
The laser strike pattern, cleaning shots, spectrometer settings are all under user control. The analyzer includes advanced software for modifying all settings, comparing spectral data, and for generating quantitative calibration curves. The Z-903 features the same Android OS and intuitive App-driven software as all other SciAps models.
SciAps Z-903 handheld LIBS offers two distinct features not available with handheld X-ray analyzers. First, the Z analyzes elements that X-ray cannot, including lithium, beryllium, boron, carbon, fluorine, and sodium. Second, the Z performs micro-analysis in the field, something not available with any other analyzer. The laser beam is 100 um, and the Z can raster the laser in discrete increments in two dimensions. This allows for heat mapping of regions on rocks. And, the Z is generally better on low concentrations of major elements or metals including magnesium and aluminum compared to handheld XRF.
Users may set up the raster to a grid pattern, using the 100 um laser spot size for elemental heat mapping point-by-point. For bulk samples, the Z can be set to average results from every raster location for a bulk sample result, just like handheld XRF analysis.