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A sensitive method for the measurement of ammonium in soil extract and water

Title
A sensitive method for the measurement of ammonium in soil extract and water
Authors
Kang H.Stanley E.H.Park S.-S.
Ewha Authors
박석순강호정
SCOPUS Author ID
박석순scopus
Issue Date
2003
Journal Title
Communications in Soil Science and Plant Analysis
ISSN
0010-3624JCR Link
Citation
vol. 34, no. 15-16, pp. 2193 - 2201
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Ammonium is one of the most important inorganic nutrients in many ecosystems. The utility of a sensitive method for the measurement of ammonium (NH4+) in water, soil and plant-derived samples using fluorescence of an o-phthaldialdehyde (OPA)-based compound was evaluated in this study. This method involves less toxic chemicals than a conventional method, requires minimal equipment, and allows for fairly rapid sample processing. This method is not only sensitive for low (e.g., sub-micromolar) NH4+ concentrations, but also applicable for samples with much higher concentrations (> 100 μM NH4+) by using a modified spectrophotometric protocol developed herein. This evaluation demonstrates that this method provides a valuable tool for the measurement of NH4+ in a variety of environmental samples including soil extracts, litter leachates and highly polluted water.
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엘텍공과대학 > 환경공학전공 > Journal papers
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