DETERMINATION OF AMMONIUM ION IN URINE USING AN AMMONIUM ION-SELECTIVE ELECTRODE

Authors
MERKOCI A COCOLI V BARAJ B BUZO S
Citation
A. Merkoci et al., DETERMINATION OF AMMONIUM ION IN URINE USING AN AMMONIUM ION-SELECTIVE ELECTRODE, Acta chimica Hungarica, 130(1), 1993, pp. 19-24
Citations number
6
Categorie Soggetti
Chemistry
Journal title
Acta chimica Hungarica → ACNP
ISSN journal
02313146
Volume
130
Issue
1
Year of publication
1993
Pages
19 - 24
Database
ISI
SICI code
0231-3146(1993)130:1<19:DOAIIU>2.0.ZU;2-U
Abstract
The factorial design is used to study interferences of [K+] and pH dur ing ammonium determination by NH4 - ISE. It is concluded that as resul t of a negative pH-[K+] interactive interference the positive interfer ence of [K+] may be diminished. The optimal pH for NH4+ determination is 7.4. A complete procedure is presented to diminish the interference s of [K+] and pH. Parallelly an indirect method is used for the determ ination of total ammonium in urine.