Patent ID: 7349760

Claim:
A system comprising: a reaction cell that receives a sample of a source solution containing a concentration of a chemical agent; a reagent pump that adds reagents to the reaction cell once the reaction cell has received the sample; a titrant dropper that releases one or more drops of titrant into the reaction cell once the reaction cell has received the reagents, wherein the titrant changes a characteristic of the sample; a sensor that detects the number of drops of titrant released into the reaction cell; a controller in communication with the reagent pump, the titrant dropper, and the sensor, wherein the controller computes the concentration of the chemical agent in the sample based on the number of drops of titrant released in the sample and a corresponding change in the characteristic of the sample; and a dosing pump in communication with the controller, wherein: the controller commands the dosing pump to add chemical agent to the source solution when the controller determines that the concentration of the chemical agent in the sample is below a predetermined value; and the controller commands the dosing pump to add a diluting agent to the source solution when the controller determines that the concentration of the chemical agent in the sample is above a predetermined value.