The stable-isotope stratigraphy of sedimentary organic matter and algal cellulose in cores from two lakes near treeline on the Kola Peninsula indicate changes in water and nutrient balance that correlate with inferred ...
Use of a simple, disposable apparatus allows the measurement of 2H/1H ratios in small quantities of potentially toxic organic materials without the release of hazardous compounds. The apparatus consists of welded nickel ...
Addition of a simple evacuated collection device to nickel-tube pyrolysis bombs permits collection of the hydrogen gas produced during decomposition of water and other substances containing hydrogen. Tests using water ...