Abstract
A flow injection method for automating the DPD reaction with free Cl in water samples has been described. The carrier stream consists of a 1∶1 (v/v) mixture of N,N-diethyl-p-phenylene diamine (DPD) indicator and phosphate buffer. A sampling rate of 252 per hour has been obtained and the detection limit is 0.3 ppm. Substitution of DPD with N,N-p-dimethylaniline sulphate also appears to be satisfactory for Cl analysis. The effects of reagent concentrations, flow parameters and additions of anions, cations and organic haloamines on the peak height have been investigated. The ammonium-Cl reaction has been studied and potentialities of the flow technique for the analyses of chloramines have been explored.
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.
