Guidelines For Proper Filtration And Delivery Of Samples To On-Line Process Analyzers
By Ken Perrotta, Division Engineering Manager
Increasingly precise process control strategies, often linked to computer control, have accelerated the use of sophisticated on-line chemical composition analyzers in plant applications. Instruments such as gas and liquid chromatographs, ion chromatographs, laser optic instruments, atomic absorption instruments and specific ion analyzers, which were rarities in laboratories ten years ago, are now found routinely in plant settings. While
continuing miniaturization and “ruggedization” of the electronics are making the instrumentation circuitry more tolerant of the plant environment, a problem that will not diminish is the level of contamination in plant samples compared to laboratory samples.
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