Heavy metals monitoring apparatus
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United States of America Patent
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Issued Date -
Jun 16, 2005
app pub date -
Nov 12, 2004
filing date -
Nov 12, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Apparatus and methods for monitoring of dissolved (ionic) heavy metal residuals in liquid process stream or liquid waste (effluent) streams, as examples, after recovery and collection of such metals from a laboratory, medical, industrial or manufacturing process stream. An automatic controller is employed to deliver a sample volume of liquid from the stream to a measurement chamber, adjust the conductivity of the sample volume within the measurement chamber to a predetermined conductivity at a predetermined conductivity measurement temperature, employ an ion specific electrode and a reference electrode to make a voltage measurement representative of the concentration of specific metal ions within the sample volume at the predetermined concentration measurement temperature, record the voltage measurement, and flush the measurement chamber.
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