KIBU2023-03-212023-03-212022-12-22http://erepository.kibu.ac.ke/handle/123456789/8871ESM 724E:Chemistry MethodsenAttribution-NonCommercial-ShareAlike 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-sa/3.0/us/ESM 724E:Chemistry MethodsESM 724EChemistry MethodsOther