RE:Few questions left...Xenemetrix and ED-XRF are the jewels, GFI was simply an application of that technology. Hopefully Bruce can now roll in Austin AI into Xenemetrix. EDXRF spectroscopy is one of the simplest, most accurate and economic analytical methods for the determination of the chemical composition of many types of materials. The technique is most time non-destructive, requiring minimum if any sample preparation, and is suitable for almost all sample types and shapes. X-ray Fluorescence (XRF) spectrometric analysis can be employed to measure a wide range of atomic elements, from sodium (11) through uranium (92), while providing detection limits from low parts-per-million (ppm) to high weight percent (%wt). In addition to elemental analysis, EDXRF may be used to measure the thickness and composition of multi-layer thin films Typical uses of EDXRF include the analysis of petroleum oils and fuel, plastic, rubber and textiles, pharmaceutical products, foodstuffs, cosmetics and body care products, fertilizers, geological materials, mining feeds, slag and tails, cement, heat-resistant materials, glass, ceramics, catalysts, wafers; the determination of coatings on paper, film, polyester; metals and alloys, glass and plastic; forensics and pollution monitoring of solid and liquid waste, effluent, cleaning fluids, pools and filters.