Hi all! Thanks for the help!
I have a sample containing bromine, bromide, and chloride salts in solution with water. I am trying to measure the absorbance of bromide with a photometer for an industrial application. The bromine peak is at 235 nm and the bromide peak is at 214 nm. I thought about automating the phenol red colorimetric method with a reagent system, but chloramine-T is pretty sensitive and would create a lot of waste. I can measure bromine easily, but bromine overlaps with my bromide peak making it difficult to measure bromide. I was thinking if I measure the concentration of bromine first, and then react bromide in such a way to make bromine, I can then measure bromine again and take the difference to get my resulting bromide concentration. I've read that I can maybe use Potassium Bromate, but I'm not sure of the implications this will have on bromine and chloride salts in my sample.
Any ideas on what I can use to make this work or is this idea just too crazy to attempt?
Any ideas are welcome!