Learn More
Excluded salt accumulated at mangrove roots must be transported away from the root zone by diffusive processes, due to the low permeability of most mangrove soils. The diffusion coefficient for salt in mangrove soils determines the rate of this diffusive transport but has not been determined experimentally before. In this work we used a 12-month long-time(More)
Measurements of protein and amino acid metabolism in man using stable isotopes and selected ion monitoring gas chromatographic/mass spectrometric techniques are limited by the requirement of relatively high levels of labelling for adequate precision (greater than 0.05 at % excess). We describe here a means of extending the scope of such studies by(More)
The isotope ratio mass spectrometer Dual inlet double collector gas isotope ratio mass spectrometers by inherent design, possess a low resolving power but extremely high sensitivity. These specialized instruments are capable of precise estimates of the heavy isotopic content of pure, low molecular weight permanent gases such as H,, CO,, N, and SO,. For(More)