James W. Ball

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A sampling protocol for the retention, extraction, and analysis of sulfoxyanions in hydrothermal waters has been developed in the laboratory and tested at Yellowstone National Park and Green Lake, NY. Initial laboratory testing of the anion-exchange resin Bio-Rad AG1-X8 indicated that the resin was well suited for the sampling, preservation, and extraction(More)
A new method for field speciation of Cr(VI) has been developed to meet present stringent regulatory standards and to overcome the limitations of existing methods. The method consists of passing a water sample through strong acid cation-exchange resin at the field site, where Cr(III) is retained while Cr(VI) passes into the effluent and is preserved for(More)
INTRODUCTION Accurate and precise determination of inorganic As (III/V) redox species is important in the interpretation of its toxicity and mobility in acid mine waters. Several analytical methods use arsine generation to separate arsenic species but high metal concentrations can suppress arsine production (Creed and others 1996). The potential inhibition(More)
Yellowstone National Park, USA, has more than 10,000 thermal features throughout a land area of 2.2x10 acres (just short of a million hectares). These characteristics make it unique among the world’s geothermal areas and, consequently, it has been the subject of numerous geological, geochemical, and ecological studies. Past and current research related to(More)
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