Patent ID: 7247278

Claim:
An automated computer-controlled field-deployable monitoring instrument system for collection and analysis of environmental contaminants and determining the concentration of an analyte of interest in ground water, industrial and surface water, comprising: diversion means dividing a water sample into first and second flow paths, said first flow path directing the water sample to a sample vessel for analysis, and the second flow path passing the water through a water treatment cartridge containing a sorbent media to eliminate the analyte of interest before introduction of water into the sample vessel, means to calibrate said instrument, a calibration assembly to add a standard of predetermined concentration of analyte to the water after it passes through a water treatment cartridge containing a sorbent media to eliminate the analyte of interest, a sample vessel to receive water from said single flow path to determine the concentration of the analyte in the sample water for either of the first or second flow paths, and means between the calibration assembly and the sample vessel to reunite said first and second flow paths into a single flow path.