The PAT‐20, varian’s new NMR process analyzer

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Abstract
Varian’s earlier process analyzer, the PA‐7, is now being replaced by a new solid state instrument, the PAT‐20, with improved reliability and performance and simplified operation. The instrument measures the NMR signal of the protons in the sample, integrating the narrow line to give a quick and accurate quantitative analysis of water or oil in a previously weighed sample. The result can be displayed on a recorder or on a digital readout. It can also be fed directly into a computer for on line process regulation. A short description of the construction of the instrument is given and the principles of operation are explained.

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