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Simple determination of nitrate in soils by second‐derivative spectroscopy
Author(s) -
SEMPERE A.,
OLIVER J.,
RAMOS C.
Publication year - 1993
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1993.tb02328.x
Subject(s) - nitrate , derivative (finance) , soil water , cadmium , simple (philosophy) , soil test , chemistry , analytical chemistry (journal) , chromatography , environmental science , soil science , organic chemistry , philosophy , epistemology , financial economics , economics
SUMMARY A new and simple method for nitrate analysis in soil extracts and soil solution is described. The method uses the second derivative of the direct ultra‐violet (UV) spectrum, available from most microprocessor‐controlled spectrophotometers with a UV source. Results with the proposed method were similar to those obtained by the cadmium‐reduction column and ion‐chromatographic methods. The main advantages of the proposed technique are that it is simple, rapid, accurate and requires no sample pre‐treatment, making it useful for routine analysis of large numbers of samples.
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