M E SA- 722 0 S u lf ur & C hlorine Analyz e r F o r p e tro leum based products u s i n g p o lari ze d monochromat ic ED XRF The M E S A -7 2 2 0 is based on the latest advances in Energy Dispersive X-ray Fluorescence (EDXRF) technology. It utilizes a proprietary X-ray optical technology that produces a Polarized, Mono-chromatic X-ray energy beam. This approach is critical to achieve an ultra low noise background needed for the best limits of detection for both sulfur and chlorine. Also incorporated are; excellent performance at high concentration (multiple wt.% levels), simultaneous multi-element analysis and applicability over a wide range of sample types. Interferences produced by matrix differences or other elements are also minimized. The MESA-7220 performance is well established, as it is compliant with ASTM and ISO International Sulfur Determination Norms: EN I SO 2 0 8 4 7 Real wor ld P e t r ole u m a p pl icat i o n s Ultra low sulfur diesel (ULSD) straight run Biodiesel / Biodiesel blends Q u i ck & A c cu ra t e Typical test times are 3 min per sample for less than 50 ppm concentration. Less than 2 min per sample for concentrations above 50 ppm. Detection limits for S and Cl are in low ppm with the upper range in the % level. Simultaneous determination capability. New technology eliminates oxygen interference that can vary results significantly. Ea sy A touchscreen graphical user interface displays all the important functions for routine operation at a glance. USB ports allow a supervisor to easily plug in a keyboard and mouse to handle more complicated tasks. Clean Unlike some methods for S and Cl, the MESA-7220 models are low maintenance and do not require furnaces, conversions gases or micro syringes. Automotive Test Systems | Process & Environmental | Medical | Semiconductor | Scientific

Pelletier-cooled, Ag anode X-ray tube; 0-12.5kV; 0-2mA SAMPLE HOLDER Closely coupled, doubly curved HOPG crystal reflects Ag Ka radiation for optimal excitation of S and Cl. VACUUM CHAMBER Stable peak positions and spectral resolution (<150 eV) up to an input count rate of 200 kcps. L O D: 1 ppm wt/wt Dynamic Ran g e : 1 ppm - 10% (wt/wt). The sample chamber is under vacuum to enhance sensitivity. User replaceable 7.5 mm Kapton window. The detector is also protected by an expendable safety window between it and the sample cup window. S ample vo lu me 5 mL S Concentration Moving beam blocker slides...