A multisyringe flow injection system for ammonium determination based on the coupling of a gas-diffusion separation cell has been developed. By using a multisyringe burette equipped with additional three-way solenoid valves, the system allows the use of different reagents or samples with further propelling into a gas-diffusion unit. Two possibilities were tested to increase the sensitivity and repetitivity: flow delay during the diffusion of the ammonia formed and use of successive flow reversals.
The proposed MSFIA system is compared with the FIA and SIA techniques based on the same principle and has been validated applying the method to the determination of ammonium in environmental samples.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Multisyringe flow injection analysis (MSFIA)
Document Type: Research Article
Faculty of Pharmacy in Hradec Králové, Charles University, Prague, Czech Rep.
Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa, km. 7.5, E-07071 Palma de Mallorca, Spain
Publication date: March 1, 2003
More about this publication?