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Determination of Polyacrylamide in Soil Waters by Size Exclusion Chromatography

Jianhang Lu, Laosheng Wu* and Jianying Gan

Department of Environmental Science, University of California, Riverside, CA 92521



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  		Fig. 1. Ultraviolet absorbance spectra of 20 mg L-1 polyacrylamide (PAM) and 0.05 M KH2PO4 solutions.

 


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  		Fig. 2. Size exclusion chromatograms of polyacrylamide (PAM) in four soil supernatants. Chromatographic conditions: 7.8-mm-i.d. x 30-cm-long TSK-Gel GMPWXL column; 0.05 M KH2PO4 mobile phase; 1.0 mL min-1 flow rate; 100-µL injection volume; and ultraviolet (UV) detection at 195 nm.

 


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  		Fig. 3. Concentration of polyacrylamide (PAM) in soil leachate as a function of flow volume through soil columns. Each point is the mean of three individual measurements. Error bars represent the standard deviations of the means.

 


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  		Fig. 4. Polyacrylamide concentrations in furrow streams during water advancing. Each point is the mean of three individual measurements. Error bars represent the standard deviations of the means.

 




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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education		 Vadose Zone Journal
Soil Science Society of America Journal Journal of Plant Registrations The Plant Genome
Copyright © 2003 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.