Ion Chromatographic Determination of Anions in Environmental Samples |
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| Authors: | Haider A Khwaja Adil R Khan Sumizah Qureshi |
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| Institution: | 1. Wadsworth Center, New York State Department of Health , Empire State Plaza, P. O. Box 509, Albany, NY, 12201-0509, USA;2. Department of Environmental Health and Toxicology , School of Public Health, University at Albany , Empire State Plaza, P. O. Box 509, Albany, NY, 12201-0509, USA;3. Wadsworth Center, New York State Department of Health , Empire State Plaza, P. O. Box 509, Albany, NY, 12201-0509, USA;4. Department of Environmental Health and Toxicology , School of Public Health, University at Albany , Empire State Plaza, P. O. Box 509, Albany, NY, 12201-0509, USA |
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| Abstract: | Abstract The use of ion-exchange chromatography with an IonPac AS 14 column, 3.5 mM Na2CO3/1.0 mM NaHCO3 eluent and suppressed conductivity detection provides a simple, cost-effective, fast, accurate, and highly sensitive method for the determination of F?, Cl?, NO2 ?, Br?, NO3 ?, PO4 2?, SO4 2?, and C2O4 2? at low μ/L levels in environmental samples. Data on sensitivity, selectivity, accuracy, and % relative standard deviation are described. The method is suitable for many environmental applications including atmospheric aerosols (exposed on cellulose, glass fiber, and quartz filters), rainwater, cloud water, potable- and non-potable waters, and carbonated waters. Dominant components of the aerosol were SO4 2?, NO3 ?, and Cl?. Rainwater, on the other hand, has relatively very low concentrations of these three species. The wide-spread concentration range for Cl? in variety of water samples and the high concentrations for SO4 2? in drinking water are striking. Determination of the anionic composition of carbonated waters revealed a considerable variation of the individual anions. |
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| Keywords: | Ion chromatography anions atmospheric aerosols rainwater cloud water drinking water |
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