An improved ion-exchange/diffusion method for 15N isotope tracing analysis of nitrate in surface waters from watersheds.

@article{Chen2010AnII,
  title={An improved ion-exchange/diffusion method for 15N isotope tracing analysis of nitrate in surface waters from watersheds.},
  author={Wei-qi Chen and Weicai Chen and Huanhuan Rao and Luoping Zhang and Huasheng Hong},
  journal={Journal of environmental sciences},
  year={2010},
  volume={22 5},
  pages={784-8}
}
An improved method, suitable for collecting nitrate from surface waters in the watershed for 15N isotope tracing analysis, was developed on the basis of the anion exchange coupled with diffusion through systematic simulation and comparison experiments. The results showed that the nitrate could be separated and enriched from the waters efficiently by using the improved method. Being simple and practical in operation principle and procedures, cost-economic, and highly efficient in nitrate… CONTINUE READING

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