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Article
On-line determination of mercury in river water at the German monitoring station Schnackenburg/Elbe
A monitor is described which provides the on-line determination of mercury in river water at concentrations from 20 to 1000 ng/L. The measurement includes an on-line digestion with Br–/BrO3 ...
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Chapter
Erfahrungen zur Online Messung von Quecksilber in der Meßstation Schnackenburg/Elbe
Bekanntlich ist das Sediment in großen Teilen der Elbe stark mit Quecksilber belastet (Wilken und Weiler 1986). Die Quecksilberbelastung des Elbewassers hat inzwischen deutlich abgenommen. Zur Beurteilung der ...
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Article
New injection technique for flow injection atomic absorption spectrometry using tubing clamp valves
Flow injection devices for atomic absorption spectrometry usually are equipped with a sixport-valve consisting of two PTFE-cylinders. This kind of valve can be substituted by an arrangement of tubing clamp val...
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Article
Investigations on sample pretreatment for the determination of selected metals and organochlorine compounds in suspended particulate matter of the River Elbe
The River Elbe and some of its tributaries are transporting polluted suspended particulate matter (SPM). Due to the property of SPM to accumulate anthropogenic and nonanthropogenic substances, this matrix is o...
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Article
Evaluation of experimental conditions on the response of fluoride and cyanide selective electrodes in flow injection potentiometry
The response of fluoride and cyanide selective electrodes has been investigated under steady-state and flow injection measuring conditions. Response time measurements indicate that at lower concentration level...
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Article
Modulated flow technique for sensitivity enhancement of potentiometric strip** analysis
