Process Analytical Measurements

Process Analyzer Sampling Systems

“…In the past few years on-line process analyzers have become increasingly important in the chemical process and related industries (J). An excellent general discussion of process analyzers was presented in these pages recently (2). That discussion was followed by an overview of process infrared analyzers (3).…”

Process analyzer sampling systems

“…A useful definition of a process analyzer is, "an environ-mentally suitable automatic device that continuously or periodically measures one or more chemical parameters in a process stream and presents the results in a usable form." This definition is exemplified in the infrared analyzer article cited above (3) and in an older article describing process gas chromatography (4). A process analyzer sampling system can be characterized as, "a device or combination of devices which will transfer a sample from a process stream to a process analyzer in such a way as to minimize maintenance and to preserve or enhance the analytical information contained in the sample.…”