Statistical evaluation of arsenic adsorption data using linear-plateau regression analysis
- Univ. of Idaho, Moscow, ID (United States)
Few studies have utilized a statistical approach for comparisons of adsorption data. Our objective was to evaluate the suitability of linear-plateau regression analysis to identify the As adsorption plateau and facilitate statistical comparison of As-adsorption rates and maxima. Three northern Idaho soils exhibiting a range in As-adsorption capacity were tested. Batch techniques with ion chromatographic determination of arsenite and arsenate were used. The linear-plateau regression model provided a good fit for the adsorption-rate data. The time required to attain an adsorption plateau ranged from 2 to 8 h, depending on soil characteristics and As species. The model allowed statistical identification of the As-adsorption plateau and subsequent comparison of As-adsorption rates and maxima through use of analysis of covariance and least significant difference procedures. 16 refs., 3 figs., 2 tabs.
- OSTI ID:
- 5571104
- Journal Information:
- Soil Science Society of America Journal; (United States), Vol. 56:4; ISSN 0361-5995
- Country of Publication:
- United States
- Language:
- English
Similar Records
Simultaneous determination of arsenite, arsenate, selenite, and selenate by suppressed ion chromatography
Arsenite and arsenate adsorption on ferrihydrite: Surface charge reduction and net OH{sup {minus}} release stoichiometry
Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ARSENIC COMPOUNDS
ADSORPTION
ION EXCHANGE CHROMATOGRAPHY
LAND POLLUTION
MONITORING
SOILS
SURFACE PROPERTIES
EVALUATION
MATHEMATICAL MODELS
REGRESSION ANALYSIS
SOIL CHEMISTRY
STATISTICAL MODELS
CHEMISTRY
CHROMATOGRAPHY
MATHEMATICS
POLLUTION
SEPARATION PROCESSES
SORPTION
STATISTICS
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
990200 - Mathematics & Computers
400201 - Chemical & Physicochemical Properties