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

Hojeong Kang; Emily H. Stanley; Seok Soon Park

doi:10.1081/CSS-120024057

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

Hojeong Kang, Emily H. Stanley, Seok Soon Park

Department of Environmental Science & Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

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.

Original language	English
Pages (from-to)	2193-2201
Number of pages	9
Journal	Communications in Soil Science and Plant Analysis
Volume	34
Issue number	15-16
DOIs	https://doi.org/10.1081/CSS-120024057
State	Published - 2003

Bibliographical note

Funding Information:
This research was funded by the Environmental Protection Agency STAR Program (Grant No. R826600). The completion of the manuscript was

Funding Information:
supported by a grant (No. 5-4-1) from Sustainable Water Resources Research Center of 21st Century Frontier Research Program endowed to H. Kang and S-S. Park.

Keywords

Eutrophication
Fluorescence
Methodology
Nitrogen

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1081/CSS-120024057

Cite this

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title = "A sensitive method for the measurement of ammonium in soil extract and water",

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.",

keywords = "Eutrophication, Fluorescence, Methodology, Nitrogen",

author = "Hojeong Kang and Stanley, {Emily H.} and Park, {Seok Soon}",

note = "Funding Information: This research was funded by the Environmental Protection Agency STAR Program (Grant No. R826600). The completion of the manuscript was Funding Information: supported by a grant (No. 5-4-1) from Sustainable Water Resources Research Center of 21st Century Frontier Research Program endowed to H. Kang and S-S. Park.",

year = "2003",

doi = "10.1081/CSS-120024057",

language = "English",

volume = "34",

pages = "2193--2201",

journal = "Communications in Soil Science and Plant Analysis",

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T1 - A sensitive method for the measurement of ammonium in soil extract and water

AU - Kang, Hojeong

AU - Stanley, Emily H.

AU - Park, Seok Soon

N1 - Funding Information: This research was funded by the Environmental Protection Agency STAR Program (Grant No. R826600). The completion of the manuscript was Funding Information: supported by a grant (No. 5-4-1) from Sustainable Water Resources Research Center of 21st Century Frontier Research Program endowed to H. Kang and S-S. Park.

PY - 2003

Y1 - 2003

N2 - 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.

AB - 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.

KW - Eutrophication

KW - Fluorescence

KW - Methodology

KW - Nitrogen

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U2 - 10.1081/CSS-120024057

DO - 10.1081/CSS-120024057

M3 - Article

AN - SCOPUS:0042859771

SN - 0010-3624

VL - 34

SP - 2193

EP - 2201

JO - Communications in Soil Science and Plant Analysis

JF - Communications in Soil Science and Plant Analysis

IS - 15-16

ER -

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

Abstract

Bibliographical note

Keywords

UN SDGs

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Cite this