| http://www.w3.org/ns/prov#value | - For many purposes it is desirable to know, quantify and/or quantitate the concentration of both nitrogen and sulfur in a sample, including nitrogen and sulfur chemically bound in organic, inorganic, bio-inorganic or bio-organic materials, e.g., quantitation of nitrogen and sulfur contents of proteins, organics, refinery streams or the concentrations in potential sulfur and nitrogen pollutants, suc
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