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Electrochemical measuring

  • US 4,786,372 A
  • Filed: 07/22/1985
  • Issued: 11/22/1988
  • Est. Priority Date: 07/22/1985
  • Status: Expired due to Term
First Claim
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1. In a method for analyzing fluid samples using an electrochemical measuring apparatus having an analyzing device with an inlet port and an outlet port, said outlet port connecting to an outlet tube, said inlet port connecting to an inlet tube having a sample receiving end, and said inlet tube connecting at a junction along its length to one end of a fluid supply tube having two ends, said one end and an opposite end, said fluid supply tube being connected at its opposite end to at least one fluid source, the improvement comprising a method for introducing a fluid into the inlet tube to wash said inlet tube of contaminants at the junction comprising,advancing the fluid from the fluid source to the junction, andexerting a force to move the fluid in the inlet tube at a rate that is slower than the rate the fluid advances into the junction such that a first portion of the fluid passes proximally in the inlet tube and a second portion of the fluid passes distally in the inlet tube.

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