Hoffmann, Michael R. and Yost, Eric C. and Eisenreich, Steven J. and Maier, Walter J. (1981) Characterization of soluble and colloidal phase metal complexes in river water by ultrafiltration. A mass-balance approach. Environmental Science and Technology, 15 (6). pp. 655-661. ISSN 0013-936X. https://resolver.caltech.edu/CaltechAUTHORS:20150820-144458609
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Abstract
Ultrafiltration, anodic stripping voltammetry, and atomic absorption spectrophotometry have been used to determine the distribution and degree of association of major trace metals with discrete size fractions of dissolved organic matter which passes initially through a 0.4-pm membrane filter. A novel mass-balance approach has been developed for fractionation of operationally defined, dissolved organic matter and organometallic complexes into well-defined molecularsize ranges. The highest concentrations of trace metals were found in intermediate molecular weight fractions ( 10^3-10^4) with no detectable free or labile metal as determined by anodic stripping voltammetry.
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| Additional Information: | © 1981 American Chemical Society. Received for review December 20,1979. Accepted February 2,1981. Publication Date: June 1981. This research was supported by a grant from the National Science Foundation (ENV77-04496 )to M.R.H., S.J.E.,and W.J.M. We are grateful to many colleagues who were helpful during this study. Special thanks go to Drs. W. Combs, N. Carriker, and H. Allen for stimulating discussions and assistance. | |||||||||
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| Issue or Number: | 6 | |||||||||
| Record Number: | CaltechAUTHORS:20150820-144458609 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150820-144458609 | |||||||||
| Official Citation: | Characterization of soluble and colloidal phase metal complexes in river water by ultrafiltration. A mass-balance approach Michael R. Hoffmann, Eric C. Yost, Steven J. Eisenreich, and Walter J. Maier Environmental Science & Technology 1981 15 (6), 655-661 DOI: 10.1021/es00088a002 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 59794 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 21 Aug 2015 18:33 | |||||||||
| Last Modified: | 03 Mar 2020 13:01 |
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