System for measuring monochloramine with a thiocarbamate indicator and iodide
AssigneeHach Company
InventorAmit Das
Life of this patent
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Abstract
An embodiment provides a method for measuring total chlorine in a solution, including: preparing a thiocarbamate indicator; introducing the thiocarbamate indicator to a solution, wherein the solution contains an amount of monochloramine; adding an additive to the solution, wherein the additive accelerates the reaction rate between the thiocarbamate indicator and monochloramine and causes a change in fluorescence of the solution; and measuring the amount of monochloramine in the solution by measuring an intensity of the fluorescence. Other aspects are described and claimed.
Claims6
A system for measuring monochloramine in a sample solution, the system comprising:
- a thiocarbamate derivative prepared from a 7-hydroxy coumarin;
- an additive comprising iodide;
- a measurement device configured to measure a fluorescence intensity of a reaction solution prepared from the sample solution, the thiocarbamate derivative, and the additive;
- a processor operatively coupled to the measurement device;
- a memory storing instructions executable by the processor to produce an output of monochloramine concentration based upon the fluorescence intensity.
Dependencies are inferred from the claim text.