کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6316956 | 1619173 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Complexation of silver and dissolved organic matter in soil water extracts
ترجمه فارسی عنوان
پیچیدگی نقره و مواد آلی محلول در عصاره آب خاک
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کلمات کلیدی
نقره، کربن ارگانیک حل شده خاک پیچیدگی طیف سنجی،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
An important aspect of the behaviour and fate of silver (Ag) in soils is the interaction with dissolved organic matter (DOM). The complexation and strength of binding of Ag+ with DOM in soil water extracts was examined and modelled based on a range of chemical and quality DOM measurements. Silver ion binding measured by addition of the 110mAg radioisotope in addition to a cation exchange resin technique were used to determine strongly complexed Ag in solutions. Silver was found to be up to 70% strongly complexed. The variability in Ag+ binding by DOM across different soils was closely related (R2Â =Â 0.8) to the mid-infrared spectra of these extracts. The affinity of Ag+ for DOM was stronger in solutions containing a greater content of humic and aromatic structures. The ability of Ag+ to complex with DOM could result in increased mobilisation of this metal in the soil environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 199, April 2015, Pages 174-184
Journal: Environmental Pollution - Volume 199, April 2015, Pages 174-184
نویسندگان
Lara Settimio, Mike J. McLaughlin, Jason K. Kirby, Kate A. Langdon, Les Janik, Scott Smith,