Analysis of cations in drainage water and soil solution by single-column ion chromatography.
Single-column ion chromatography (SCIC) for cation determination in drainage water and soil solution was tested. Using a 100-microliter sample loop, the SCIC detection limits were 0.04 mg l-1 for Na+, 0.02 mg l-1 for NH4-N, 0.06 mg l-1 for K+, 0.05 mg l-1 for Mg2+, and 0.085 mg l-1 for Ca2+. Results were highly reproducible in wide ranges of concentrations. Results obtained by the SCIC method were compared with those by atomic emission spectrometry (Na+ and K+) and atomic absorption spectrometry (Mg2+ and Ca2+). Student's t-test and regression analysis showed that corresponding methods agree closely.
Fernández-Boy
M E
ME
Instituto de Recursos Naturales y Agrobiología de Sevilla, CSIC, Spain.
Cabrera
F
F
Madejón
E
E
Díaz
M J
MJ
Moreno
F
F
Calero
J P
JP
D002118:Calcium / Q000032:analysis; D002412:Cations / Q000032:analysis*; D002845:Chromatography / Q000379:methods*; D004784:Environmental Monitoring; D008274:Magnesium / Q000032:analysis; D011188:Potassium / Q000032:analysis; D000644:Quaternary Ammonium Compounds / Q000032:analysis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012964:Sodium / Q000032:analysis; D012987:Soil / Q000032:analysis*; D012996:Solutions; D014867:Water / Q000032:analysis*
D002412:Cations; D000644:Quaternary Ammonium Compounds; D012987:Soil; D012996:Solutions; D014867:Water; D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium