Stopped Flow Apparatus Employing a Rapid Scanning Monochromator

Abstract
A stopped flow apparatus employing a rapid scanning monochromator is described. This system is thermostatted and uses Pyrex mixing cells. The monochromator permits rapid study of changes in the spectrum for suitable moderately fast reactions. The instrument is double beam and direct reading in absorbance units. Data are stored on an FM tape recorder and played back to an oscilloscope. Tests of the instrument's performance are given, and several possible applications are discussed.
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