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Fibre optic-based detection of the entire sample plug as a straightforward approach to kinetic measurements in flow-injection systems

Authors
Journal
Analytica Chimica Acta
0003-2670
Publisher
Elsevier
Publication Date
Volume
297
Issue
3
Identifiers
DOI: 10.1016/0003-2670(94)00417-x
Keywords
  • Flow Systems
  • Fibre Optic
  • Reaction-Rate Measurements
Disciplines
  • Chemistry

Abstract

Abstract An unsegmented continuous-flow approach based on the use of tubular flow cells with an axial optical pathlength is reported. The device enables the monitoring of the entire sample plug and uses a spectrophotometric detector furnished with optical fibres. This allows the simple adaptation of the length of the glass tube that functions as the flow cell to the chemical system to be monitored. Recordings resembling those provided by the stopped-flow technique can be obtained without halting the flow, thus facilitating the implementation of reaction rate methods.

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