A modification of the Aminco-Morrow stopped-flow apparatus for the measuring of fast chemical reactions is described. In this modification the usual spectrophotometric method of following the course of the reaction is replaced by conductivity measurements. For this purpose a microconductivity cell has been constructed and inserted in place of the quartz observation tube. This microconductivity cell serves as one arm of a fast response conductivity bridge, the output of which is monitored on an oscilloscope. The performance was checked and was found to be satisfactory for the investigation of rapid reactions.
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Michael Wolff (1974) studied this question.
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