Flow injection nonaqueous solvent neutralization titration process and apparatus

A method of determining the concentration of a sample in a fluid carrier solution comprising the steps of:

• selecting a predetermined quantity of a known titrant;
• preparing calibration values based on the predetermined quantity of the known titrant for different predetermined concentrations of a desired component to be determined in the sample, the known titrant quantity being in excess of an amount necessary to completely react with the sample;
• adding the quantity of a known titrant to the sample and causing it to fully react with the sample;
• providing a fluid carrier solution for receiving the sample and titrant after they have interacted;
• inserting the sample and titrant by-products in the fluid carrier solution;
• providing a pH buffer solution;
• mixing the fluid carrier solution, with by-products of the reactions of the sample and titrant, in the pH buffer solution to change the concentration ratio of acids to bases by any active excess titrant;
• detecting any amount of an excess remaining titrant that has not reacted with the sample, and
• determining from the calibration values and the detected amount of excess titrant, the concentrations within the sample of the desired component.