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Use of an ammonia electrode for determination of ammonium in Kjeldahl analysis of soils1

 

作者: J. M. Bremner,   M. A. Tabatabai,  

 

期刊: Communications in Soil Science and Plant Analysis  (Taylor Available online 1972)
卷期: Volume 3, issue 2  

页码: 159-165

 

ISSN:0010-3624

 

年代: 1972

 

DOI:10.1080/00103627209366361

 

出版商: Taylor & Francis Group

 

关键词: ammonia electrode;ammonium;total nitrogen;Kjeldahl method;soils

 

数据来源: Taylor

 

摘要:

The distillation step in total N analysis of soil by the Kjeldahl method can be eliminated by use of the Orion ammonia electrode for determination of the ammonium formed by Kjeldahl digestion of the soil sample. The electrode method of analysis is rapid, simple, and precise, and it gives quantitative recovery of ammonium added to Kjeldahl digests of soils. The results by this method of determining ammonium in Kjeldahl analysis of soils agree closely with those obtained by the customary distillation‐titration method.

 

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