Quantifying relationships between near-infrared reflectance spectra of lake sediments and water chemistry

Article Abstract:

The relationships between lake water total phosphorus, total organic carbon and pH and the near-infrared reflectance (NIR) spectra of lake sediments were evaluated to determine if NIR spectroscopy can be used as an effective technique for environmental monitoring. The results showed a large variance in the results obtained by the models. It was suggested that models should be further improved to reflect accurately lake water chemistry.

Usage, Near infrared spectroscopy, Lake sediments

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Microcolumn ion-exchange method for kinetic speciation of copper and lead in natural waters

Article Abstract:

An ion-exchange column procedure can be used for metal speciation in natural waters. The procedures enables an analysis of the kinetics of disassociation of metal complexes contained in a sample of natural water. This testing of this procedure was accomplished by analyzing the copper and lead complexes present in a sample of water from the Jarama River in Spain.

Research, Ion exchange, Coordination compounds

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