Detection of sulphate by flame emission spectrometry |
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Authors: | Sverre Hauge Kjartan Marøy Arngrimur Thorlacius |
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Institution: | Department of Chemistry, University of Bergen, N-5007 Bergen, Norway;Agricultural Research Institute, Keldnaholt, 112 Reykjavik, Iceland |
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Abstract: | A reasonably simple method for the determination of sulphate is presented. The method is based on disulphur molecular emission, produced in a hydrogen-nitrogen diffusion flame, utilizing a conventional atomic absorption spectrometer, with simple accessories to handle in-line ion-exchange pretreatment. A simplex program was written and used to obtain optimum experimental conditions. Disulphur emission was found to occur at temperatures from below 150°C; the optimum temperature is ca. 200°C. The method can be used for the determination of sulphate down to ca. 10 mg S l?1. |
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Keywords: | Emission spectrometry Sulphate Disulphur |
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