Is it possible to add chlorine to the solution to get bromide to become bromine and make the total bromine measurement? I plan on measuring the absorbance of bromine before adding chlorine so I can take the difference to get my bromide concentration. The phenol red colorimetric approach seems messy.

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put on hold as unclear what you're asking by Mithoron, Todd Minehardt, A.K., MaxW, Mathew Mahindaratne Nov 10 at 7:10

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  • Method development is plagued with problems. Without exact details on all the intricacies it is impossible to offer an opinion on your chance of success. – MaxW Nov 8 at 22:51