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Revista internacional de contaminación ambiental
versión impresa ISSN 0188-4999
Resumen
ZAMORA MARTINEZ, Olivia et al. Simultaneous determination of main cations in wastewater samples by ion chromatography with conductivity detection. Rev. Int. Contam. Ambient [online]. 2016, vol.32, n.3, pp.293-301. ISSN 0188-4999. https://doi.org/10.20937/RICA.2016.32.03.04.
A methodology for the identification and simultaneous quantification of five cations using ion chromatography (IC) with conductivity detection was developed and vali-dated. The method allows to monitor the content of sodium, ammonium, potassium, calcium and magnesium in wastewater samples from the Valle del Mezquital (Hidalgo, Mexico), despite that these contain high concentrations of sodium, main interfering ion for the quantification of ammonium, since both cations have very close retention times. Concentration levels achieved for quantification of the five analytes are between 1 to 100 mg/L, with low detection limits (< 0.6 mg/L), good precision (% relative standard deviation < 3.0) and accuracy (between 98.0-114.5 %), as well as the absence of any interference.
Palabras llave : environmental monitoring; analytical validation; Valle del Mezquital; agricultural reuse.