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Method and apparatus for signalling the introduction of chemical reaction components into a chemical analyzing system

  • US 4,101,276 A
  • Filed: 06/02/1976
  • Issued: 07/18/1978
  • Est. Priority Date: 06/02/1976
  • Status: Expired due to Term
First Claim
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1. In a method of combining components of a chemical reaction which includes the steps of introducing the reaction components into a reaction zone to initiate the chemical reaction and measuring a characteristic of the reaction, the improved method of signalling the start of the chemical reaction comprising the steps of:

  • prior to initiating the chemical reaction adding a tagging substance to at least the reaction component last introduced into the reaction zone, the tagging substance remaining chemically isolated from the reaction; and

    monitoring the reaction zone for the presence of the tagging substance and upon detecting the tagging substance generating a signal indicating the start of the chemical reaction.

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