| Abstract: | A stabilized liquid membrane device (SLMD) is described for potential use as an in situ, passive, integrative sampler for cadmium (Cd), cobalt (Co), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn) in natural waters. The SLMD (patent pending) consists of a 2.5-cm-wide by 15-cm-long strip of low-density polyethylene (LDPE) layflat tubing containing 1 mL of an equal mixture (v/v) of oleic acid (cis-9-octadecenoic acid) and EMO-8Q (7-[4-ethyl-1-methyloctyl]-8-quinolinol). The reagent mixture continuously diffuses to the exterior surface of the LDPE membrane, and provides for sequestration of several divalent metals for up to several weeks. Depending on sampler configuration, concentration factors of several thousand can be realized for these metal ions after just a few days. In addition to in situ deployment, the SLMD may be useful for laboratory determination of labile metal species in grab samples. Methods for minimizing the effects of water flow on the sampling rate are currently under investigation. |
| Genre: | Article |
| ProdID: | 70024776 |
| Citation Author: | Brumbaugh, W. G.; Petty, J. D.; Huckins, J. N.; Manahan, S. E. |
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| Citation End Page: | 119 |
| Citation Issue: | 1-4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Water, Air, and Soil Pollution |
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| Citation Number Of Pages: | 11 |
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| Citation Search Results Text: | Stabilized liquid membrane device (SLMD) for the passive, integrative sampling of labile metals in water; 2002; Article; Journal; Water, Air, and Soil Pollution; Brumbaugh, W. G.; Petty, J. D.; Huckins, J. N.; Manahan, S. E. |
| Citation Start Page: | 109 |
| Citation Volume: | 133 |
| Citation Year: | 2002 |
| Type: | citation/reference |
| Text: | Stabilized liquid membrane device (SLMD) for the passive, integrative sampling of labile metals in water; 2002; Article; Journal; Water, Air, and Soil Pollution; Brumbaugh, W. G.; Petty, J. D.; Huckins, J. N.; Manahan, S. E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1023/A:1012923529742 |
| Date Other: | Tue, 1 Jan 2002 00:00 -0600 |
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