It does not matter whether the target analyte is a toxic gas or an impurity in a process stream, nor does it matter whether the detection is accomplished by spectroscopic, chromatographic, electrochemical, or radio-chemical methods. The resulting smart sensors provide important advantages in multisensor data fusion, in which multiple chemical sensors are connected to a central processing system. Schematic for creating smart chemical sensors. Digital filters extract analyte information from background noise and interferences in raw signal. Pattern-recognition procedures make an automated qualitative decision regarding the presence or absence of target analyte.
Chemometric methods analyze the filtered data to obtain quantitative data.
The G2 code is now being widely used in universities and industry for the accurate calculation of thermochemical data. It offers tremendous possibilities for identifying new processes and novel materials without the need for exhaustive, unguided laboratory research and has relevance to applications in high-temperature industrial processes, catalysis, chemical synthesis, and assessments of chemical hazards or safety. Such processes control geochemical transport, including contaminant migration in groundwater aquifers, and are therefore of practical importance. For this work, we have developed and fabricated an X-ray transparent reaction cell. This novel device continuously monitors reaction progress as a mineral surface reacts with a fluid.