Gas/Diffusion Flow Injection Determination of Ammonium Ions in River and Waste Waters by Conductometry

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Title:Gas/Diffusion Flow Injection Determination of Ammonium Ions in River and Waste Waters by Conductometry
Creators:
Vlček, Jiří
Kubáň, Vlastimil
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 64, 12, pp. 1966-1974
Uncontrolled Keywords:Gas diffusion, Conductometry, Waste water, River water, Electrochemistry, Ammonium, Flow injection analysis

Abstract

An FIA conductometric method for monitoring of ammonium ions in river and waste waters is proposed. A very good detection limit (<i>x</i><sub>D</sub> 5.6 μmol l<sup>-1</sup>) was obtained at 100/20 s preconcentration/rinsing times and 2 ml sample consumption per analysis at the flow rate 0.8 ml min<sup>-1</sup>. The detection limit <i>x</i><sub>D</sub> 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<sup>-1</sup> EDTA prior to injection. The results are comparable with those obtained by spectrophotometry (Nessler's reagent). <p>

Title:Gas/Diffusion Flow Injection Determination of Ammonium Ions in River and Waste Waters by Conductometry
Creators:
Vlček, Jiří
Kubáň, Vlastimil
Uncontrolled Keywords:Gas diffusion, Conductometry, Waste water, River water, Electrochemistry, Ammonium, Flow injection analysis
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:64
Number:12
Page Range:pp. 1966-1974
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19991966UNSPECIFIED
ID Code:1608
Item Type:Article
Deposited On:06 Feb 2009 17:11
Last Modified:06 Feb 2009 16:11

Citation

Vlček, Jiří; Kubáň, Vlastimil (1999) Gas/Diffusion Flow Injection Determination of Ammonium Ions in River and Waste Waters by Conductometry. Collection of Czechoslovak Chemical Communications, 64 (12). pp. 1966-1974. ISSN 0010-0765

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