In:
Collection of Czechoslovak Chemical Communications, Institute of Organic Chemistry & Biochemistry, Vol. 64, No. 12 ( 1999), p. 1966-1974
Abstract:
An FIA conductometric method for monitoring of ammonium ions in river and waste waters is proposed. A very good detection limit ( x D 5.6 μmol l -1 ) was obtained at 100/20 s preconcentration/rinsing times and 2 ml sample consumption per analysis at the flow rate 0.8 ml min -1 . The detection limit x D can be further improved at longer preconcentration/ rinsing times. Precipitation of polyvalent metal ions (mainly Fe(III)) was eliminated by addition of 0.5 mmol l -1 EDTA prior to injection. The results are comparable with those obtained by spectrophotometry (Nessler's reagent).
Type of Medium:
Online Resource
ISSN:
0010-0765
,
1212-6950
DOI:
10.1135/cccc19991966
Language:
English
Publisher:
Institute of Organic Chemistry & Biochemistry
Publication Date:
1999
