Abstract: A method of directed automated analysis of a plurality of analytes of a process solution includes providing a sample of the process solution containing a plurality of the analytes, admixing an enriched isotope spike for each of the plurality of analytes to be analyzed with the process solution sample thereby effecting admixture of the enriched ratio of isotopes with the naturally occurring ratio of each analyte to be analyzed, creating ions from the spikes, introducing the ions into a mass spectrometer for determination of the identity and quantity of each analyte and delivering the information to a microprocessor. If desired, the process solution sample may be diluted and/or subjected to the addition of reagents or standards prior to initiation of the analysis. The ions may be created by an atmospheric pressure ionization interface. The information obtained is processed in a computer which serves to control other portions of the practice of the method.

Abstract: An analytical apparatus to monitor fluid systems has at least one extraction module having a raw-sample reservoir connected by input fluid conduit to individual ones of said fluid systems, to extract raw samples for analysis from said fluid systems, one or more modification modules comprising additive materials to modify the extracted raw samples prior to analysis, an analytical device to receive at least a portion of said raw samples in an ordered sequence, and to determine concentration of at least one constituent of said sample portion, fluid-handling apparatus for transferring fluid through the analytical apparatus, and a computerized control and management system to manage operations of component modules and devices, and to report analytical results.

Abstract: An automated matrix removal module is configurable to automatically withdraw a portion of sample containing an interferent. The module is further configurable to mix the portion of sample with a precipitating reagent selected to react with the interferent to form a precipitant and then filter mixture of sample and precipitant reagent through a filter. Finally, the module is further configurable to flush the precipitant from the filter.

Abstract: A loop dilution system includes a dual-loop multi-way valve. In a first configuration of the multi-way valve, a first loop may be filled with a first solution and a second loop may be filled with a second solution. In a second configuration of the multi-way valve, the first and second loops are serially connected with a pump so that their contents may be mixed with a diluent. In another aspect of the invention, an in-process mass spectrometry (IPMS) system is disclosed that uses an internal standard to determine the concentration of an analyte in a sample. The internal standard has a different molecular composition than the analyte but is sufficiently similar chemically and physically to the analyte such that it behaves substantially the same as the analyte during an ionization process in the mass spectrometer.

Abstract: An analytical apparatus to monitor fluid systems has at least one extraction module having a raw-sample reservoir connected by input fluid conduit to individual ones of said fluid systems, to extract raw samples for analysis from said fluid systems, one or more modification modules comprising additive materials to modify the extracted raw samples prior to analysis, an analytical device to receive at least a portion of said raw samples in an ordered sequence, and to determine concentration of at least one constituent of said sample portion, fluid-handling apparatus for transferring fluid through the analytical apparatus, and a computerized control and management system to manage operations of component modules and devices, and to report analytical results.