The Effect of Exclusion Volume on Potentiometric Nitrate Measurement | Zendy

Gilmour J. T. | Zendy; Scott H. Don | Zendy

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The Effect of Exclusion Volume on Potentiometric Nitrate Measurement

Author(s) -

Gilmour J. T.,

Scott H. Don

Publication year - 1973

Publication title -

soil science society of america journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.836

H-Index - 168

eISSN - 1435-0661

pISSN - 0361-5995

DOI - 10.2136/sssaj1973.03615995003700060043x

Subject(s) - potentiometric titration , nitrate , salt (chemistry) , chemistry , volume (thermodynamics) , soil water , ion selective electrode , inorganic chemistry , environmental chemistry , ion , chromatography , environmental science , soil science , biochemistry , thermodynamics , organic chemistry , physics , selectivity , catalysis

Data are presented which show that large anion exclusion volumes can occur when montmorillonitic soils, low in total salt, are extracted with water. Nitrate measurements on such extracts with the nitrate specific ion electrode reflect this exclusion volume induced error. A possible solution to the problem is suggested.

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