Method and device for measuring chlorine concentrations with enh

Details Method and device for measuring chlorine concentrations with enh Method and device for measuring chlorine concentrations with enh

1991-05-09

1994-04-05

Housel, James C.

Chemistry: analytical and immunological testing

Halogen containing

In aqueous solution

436150, 436151, 422 681, 422 75, 422 8201, 422 8202, 20415313, 204400, G01N 2700, G01N 2776

Patent

active

053004426

ABSTRACT:
A method and apparatus for measuring the amount of residual chlorine in solution with enhanced accuracy. The basic measurement technique involves introducing a solution of iodide ion into the sample to reduce the chlorine, thereby producing a proportionate amount of iodine; measurement of the iodine concentration is used to infer the initial amount of chlorine. The accuracy of this measurement technique is enhanced by introducing a sufficient amount of scavenger, preferably finely divided zinc metal, into the iodide solution to react with trace amounts iodine present therein.

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