Determination and isotope-ratio analysis of different forms of nitrogen in soils

TL;DR: The methylated amines (MMA, DMA, TMA, and trimethyl amine) are commonly found in aquatic environments, apparently as a result of decomposition processes as discussed by the authors.

TL;DR: In this article, various organic geochemical parameters and rates of sulfate reduction (SRR) were determined in four sediment cores off the coast of central Chile, and the authors examined the effect of organic matter composition on the sulfates reduction rates, using C/N ratios, carbon isotopic composition, protein and chlorin concentrations.

TL;DR: The foundations of stable isotope geochemistry were laid in 1947 by Urey's classic paper on the thermodynamic properties of isotopic substances and by Nier's development of the ratio mass spectrometer as mentioned in this paper.

TL;DR: Results indicated the sensitivity of Gliricidia sepium to salinity, and all variables but Na were negatively affected by increasing NaCl levels in the nutrient solution, particularly in the root tissue.