Abstract
Abstract Carboxylic acids in aqueous solution were determined spectrophotometrically as ferric hydroxamates. A water-soluble carbodiimide, l-cyclohexyl-3-(2-morpho-linyl-(4)-ethyl)carbodiimide metho-p-toluenesulfonate, was used as a cuopling agent to form hydroxamic acids. The coupling reaction was carried out at 37°C for 30 min in a solution buffered at pH 5.3 with pyridine and hydrochloric acid. Calibration curves of benzoic, acetic, citric, and a-ketoglutaric acids were linear between 0.25 and 8 μmol.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
