Concepedia

A simplified version of the total kjeldahl nitrogen method using an ammonia extraction ultrasound-assisted purge-and-trap system and ion chromatography for analyses of geological samples

Fernanda Veronesi Marinho Pontes, Manuel Castro Carneiro, Delmo Santiago Vaitsman, Genilda P. da Rocha, Lílian I. D. da Silva, Arnaldo Alcover Neto, Maria Inês Couto Monteiro

Analytica Chimica Acta · 2008 · 46 citations · 31 references

DOI

Concepts

References

31

C:N:P stoichiometry in soil: is there a “Redfield ratio” for the microbial biomass?

Cory C. Cleveland, Daniel Liptzin · Biogeochemistry · 2007 · 2.3K citations

, , +16

Spectrophotometric and kinetics investigation of the Berthelot reaction for the determination of ammonia

Charles J. Patton, S. R. Crouch · Analytical Chemistry · 1977 · 839 citations

, , +5

Effect of grazing intensity on carbon and nitrogen in soil and vegetation in a meadow steppe in Inner Mongolia

Guodong Han, Xiying Hao, Mengli Zhao et al. · Agriculture Ecosystems & Environment · 2008 · 284 citations

, , +14

Determination of ammonia in seawater by the indophenol-blue method: Evaluation of the ICES NUTS I/C 5 questionnaire

Alain Aminot, Don Kirkwood, Roger Kérouel · Marine Chemistry · 1997 · 158 citations

, , +3

Clay mineral authigenesis in coal and shale from the anthracite region, Pennsylvania

Eric J. Daniels, Stephen P. Altaner · American Mineralogist · 1990 · 121 citations

, , +14