Abstract:Samples were dried at 40°C, ground and mixed to a homogeneous powder. Subsequently, samples were divided in several parts for different determinations. One part was analyzed for its total carbon content. A second one was treated with hydrochloric acid and analyzed for residual "organic" carbon. The difference between total and organic carbon, called here "inorganic" carbon, was used for carbonate calculation (Müller, this volume). Carbon determinations were made using a LECO Carbon Analyzer. Procedure and prec… Show more
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.