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פותח על ידי קלירמאש פתרונות בע"מ -
Simple digestion procedure followed by the azomethine-H method for accurate boron analysis and discrimination between its fractions in wastewater and soils
Year:
2008
Source of publication :
Chemosphere
Authors :
בן-גל, אלון
;
.
וולקן, רעיה
;
.
ירמיהו, אורי
;
.
Volume :
72
Co-Authors:
Gross, A., Department of Environmental Hydrology and Microbiology, Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Sede Boqer Campus, 84990 Midreshet Ben-Gurion, Israel
Bernstein, A., Department of Environmental Hydrology and Microbiology, Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Sede Boqer Campus, 84990 Midreshet Ben-Gurion, Israel
Vulkan, R., Gilat Extension Services Laboratory, Gilat Research Center, D.N. Negev 2, 85280, Israel
Tarchitzky, J., Irrigation and Soil Division, Extension Service, Ministry of Agriculture and Rural Development, P.O. Box 28, Bet-Dagan, 50250, Israel
Ben-Gal, A., Agricultural Research Organization, Institute of Soil, Water and Environmental Sciences, Gilat Research Center, D.N. Negev 2, 85280, Israel
Yermiyahu, U., Agricultural Research Organization, Institute of Soil, Water and Environmental Sciences, Gilat Research Center, D.N. Negev 2, 85280, Israel
Facilitators :
From page:
400
To page:
406
(
Total pages:
7
)
Abstract:
Excess boron is a growing environmental problem. It often affects agricultural yields, where reuse of wastewater for irrigation is practiced. This problem raises the need for reliable, simple and economical methods to monitor boron concentrations in wastewater and soil extracts. One such method, the commonly used azomethine-H spectrophotometric method, suffers from color interference, originating from high concentrations of dissolved organic matter, when applied to many wastewater and agricultural soil extracts. Moreover, this method only quantifies free dissolved boron and lacks the ability to quantify boron that is adsorbed to either the dissolved organic matter or suspended solids that are present in the sample. This work suggests a modification of the standard azomethine-H method, in which the solution is digested with potassium persulfate prior to the standard procedure. We show that this pretreatment can overcome the color interference and lead to highly accurate and precise boron analyses in wastewater. In soil extracts, the boron concentrations obtained using the suggested procedure were better correlated to inductively coupled plasma (ICP) spectrometry results than those measured by the standard method, because whereas the standard method quantifies the free dissolved boron only, the modified method, like the ICP method, quantifies the total dissolved boron in the sample. Thus, the suggested modification can be used to quantify the respective distributions of free dissolved boron, boron adsorbed to dissolved organic matter and boron adsorbed to suspended solids in soil extracts and water samples. © 2008 Elsevier Ltd. All rights reserved.
Note:
Related Files :
Adsorption
Agriculture
Biological materials
Boron
irrigation
soil
Wastewater
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.chemosphere.2008.02.040
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
29010
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:43
Scientific Publication
Simple digestion procedure followed by the azomethine-H method for accurate boron analysis and discrimination between its fractions in wastewater and soils
72
Gross, A., Department of Environmental Hydrology and Microbiology, Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Sede Boqer Campus, 84990 Midreshet Ben-Gurion, Israel
Bernstein, A., Department of Environmental Hydrology and Microbiology, Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Sede Boqer Campus, 84990 Midreshet Ben-Gurion, Israel
Vulkan, R., Gilat Extension Services Laboratory, Gilat Research Center, D.N. Negev 2, 85280, Israel
Tarchitzky, J., Irrigation and Soil Division, Extension Service, Ministry of Agriculture and Rural Development, P.O. Box 28, Bet-Dagan, 50250, Israel
Ben-Gal, A., Agricultural Research Organization, Institute of Soil, Water and Environmental Sciences, Gilat Research Center, D.N. Negev 2, 85280, Israel
Yermiyahu, U., Agricultural Research Organization, Institute of Soil, Water and Environmental Sciences, Gilat Research Center, D.N. Negev 2, 85280, Israel
Simple digestion procedure followed by the azomethine-H method for accurate boron analysis and discrimination between its fractions in wastewater and soils
Excess boron is a growing environmental problem. It often affects agricultural yields, where reuse of wastewater for irrigation is practiced. This problem raises the need for reliable, simple and economical methods to monitor boron concentrations in wastewater and soil extracts. One such method, the commonly used azomethine-H spectrophotometric method, suffers from color interference, originating from high concentrations of dissolved organic matter, when applied to many wastewater and agricultural soil extracts. Moreover, this method only quantifies free dissolved boron and lacks the ability to quantify boron that is adsorbed to either the dissolved organic matter or suspended solids that are present in the sample. This work suggests a modification of the standard azomethine-H method, in which the solution is digested with potassium persulfate prior to the standard procedure. We show that this pretreatment can overcome the color interference and lead to highly accurate and precise boron analyses in wastewater. In soil extracts, the boron concentrations obtained using the suggested procedure were better correlated to inductively coupled plasma (ICP) spectrometry results than those measured by the standard method, because whereas the standard method quantifies the free dissolved boron only, the modified method, like the ICP method, quantifies the total dissolved boron in the sample. Thus, the suggested modification can be used to quantify the respective distributions of free dissolved boron, boron adsorbed to dissolved organic matter and boron adsorbed to suspended solids in soil extracts and water samples. © 2008 Elsevier Ltd. All rights reserved.
Scientific Publication
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