Combination of FIA-CL Technique with ion-exchanger for determination of sulphate in various water resources in Erbil City
| Autor: | Diyar S. Ali, Azad T. Faizullah |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Flow injection analysis
Chemiluminescence Ion exchange Chemistry(all) General Chemical Engineering Ion-exchanger Analytical chemistry Water Injection port General Chemistry Sulphate Erbil City Luminol Ion law.invention chemistry.chemical_compound chemistry Bromide law Chemical Engineering(all) Bromine water |
| Zdroj: | Arabian Journal of Chemistry. 5(2):147-153 |
| ISSN: | 1878-5352 |
| DOI: | 10.1016/j.arabjc.2010.08.005 |
| Popis: | A new flow injection chemiluminescence system is developed for determination of anions like sulphate. The method is based on the displacement of an equivalent amount of bromide ion on a Br − from an ion-exchange minicolumn by sulphate. The released Br − then reacts with BrO 3 − in acidic medium to produce bromine water which catalyzes the Luminol/H 2 O 2 chemiluminescence. Working conditions for these determinations were optimized. The emission intensities produced were recorded as peak height (mm) on a chart recorder and they were proportional to the amount of sulphate injected. This method allowed determination of 0.96 mg/l SO 4 2 − . The developed FIA-CL system was applied for determination of sulphate in water (well and waste water) in different regions in Erbil City – North of Iraq. Interference effects of various anions were eliminated by inserting a suppressor minicolumn in the FIA-CL system after injection port, which allowed for sulphate only to pass through. The method provided a very simple, rapid and sensitive method for sulphate determination without any pretreatment. The present method was applied for sulphate and could be used for other ions with some improvement in the suppressor column. |
| Databáze: | OpenAIRE |
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