Whatever you can do with present xray fluorescence analysis techniques, you'll do it faster, cheaper, and more accurately with the EDAX/EXAM@ System. The EDAX/EXAM System is the latest state of the art technique in xray analysis. Its energy dispersive (EDAX) operating principle gives you simultaneous analysis and display of all elements from Sodium through Uranium. Qualitative analysis in seconds, quantitative in minutes. Detailed brochures available from EDAX International, Inc., PO. Box 135, Prairie View, 111. 60069.
EDAX
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How to choose the cartridge that removes oxygen from your water. Our guide shows you how to choose the right cartridges from all the water purification cartridges we make. And we make more kinds that adapt to make more pure water systems than anyone else. Now choosing the right cartridges is as easy as using them.
BARNSTEAD SYBRON CORPORATION 225 Rivermoor Street, Boston, Mass. υZï3^
Hellma—the largest assortment of highest precision glass and quartz cells. Standard • Flow-through • Constant-temperature Anaerobic · Special Designs Also available-ULTRAVIOLET LIGHT SOURCES Deuterium Lamps • Mercury Vapor Lamps Hollow Cathode Lamps · Power Supplies
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76 A ·
ANALYTICAL CHEMISTRY, VOL 44, NO. 14, DECEMBER 1972