Trace element complexation by humic substances: issues related to quality assurance
نویسندگان
چکیده
منابع مشابه
Competitive complexation of trace metals with dissolved humic acid.
In this study we investigated the effects of competing trace metals and Ca2+ on Cd(II), Pb(II), and Cu(II) complexation by humic acid extracted from groundwater in Orange County, California. Two types of titration experiments were conducted, those using a single metal and those in which the humic acid had been preequilibrated with a competing metal (either a trace metal or Ca2+). The labile met...
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4 Chemical Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 4.1 Elemental Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 4.2 Molecular Size Distribution and Charge . . . . . . . . . . . . . . . . . . . . . . 309 4.3 Spectral Absorbance and Fluorescence . . . . . . . . . . . . . . . . . . . . . . . 311 4.4 Infrared Spectra . . . . ....
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ژورنال
عنوان ژورنال: Accreditation and Quality Assurance
سال: 2010
ISSN: 0949-1775,1432-0517
DOI: 10.1007/s00769-010-0716-3