Quantitative ion chromatography without standards by conductivity detection
Journal Article
·
· Anal. Chem.; (United States)
Nonsuppressed ion chromatography with a conductivity detector is used to study solutions of ions. A quantitative method is demonstrated which is based on the detector response using first an eluent with a high equivalent ionic conductance and then an eluent with a low equivalent ionic conductance. One can thus predict the number of equivalents and the equivalent ionic conductance of unidentified ions. The individual charges of the ions are deduced from a study of the adjusted retention times, so that the molar concentrations can be determined. The method does not require any prior knowledge of the identity of the sample ion or any of its physical properties. 12 references, 1 figure.
- Research Organization:
- Iowa State Univ., Ames
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 5825388
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 56:8; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
AQUEOUS SOLUTIONS
CHEMICAL ANALYSIS
CHROMATOGRAPHY
CORRELATIONS
DATA
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
FORECASTING
INFORMATION
ION EXCHANGE CHROMATOGRAPHY
LEAST SQUARE FIT
MATHEMATICAL MODELS
MAXIMUM-LIKELIHOOD FIT
MEASURING METHODS
MIXTURES
NUMERICAL DATA
NUMERICAL SOLUTION
PARAMETRIC ANALYSIS
PHYSICAL PROPERTIES
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SOLUTIONS
TIME DEPENDENCE
400102* -- Chemical & Spectral Procedures
AQUEOUS SOLUTIONS
CHEMICAL ANALYSIS
CHROMATOGRAPHY
CORRELATIONS
DATA
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
FORECASTING
INFORMATION
ION EXCHANGE CHROMATOGRAPHY
LEAST SQUARE FIT
MATHEMATICAL MODELS
MAXIMUM-LIKELIHOOD FIT
MEASURING METHODS
MIXTURES
NUMERICAL DATA
NUMERICAL SOLUTION
PARAMETRIC ANALYSIS
PHYSICAL PROPERTIES
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SOLUTIONS
TIME DEPENDENCE