Citation: Li Qian Yin, Dong Xing Yuan, Min Zhang. Determination of sulfite in water samples by flow injection analysis with fluorescence detection[J]. Chinese Chemical Letters, ;2010, 21(12): 1457-1461. doi: 10.1016/j.cclet.2010.06.029 shu

Determination of sulfite in water samples by flow injection analysis with fluorescence detection

State Key Laboratory of Marine Environmental Science, Environmental Science Research Centre, Xiamen University, Xiamen 361005, China

Received Date: 18 March 2010

A fast, sensitive, and reliable method for the determination of sulfite (SO₃^2-) in fresh water and seawater samples was developed. The proposed method was based on the reaction of o-phthalaldehyde (OPA)-sulfite-NH₃ in alkaline solution, with flow injection analysis and fluorescence detection. The experimental parameters were investigated in pure water and seawater matrixes. The detection limits (S/N=3) were 0.006 μmol/L in pure water and 0.018 μmol/L in seawater for SO₃^2-. The method was successfully applied to analyze SO₃^2-in the samples of rain water and flue gas desulfurization seawater.
- Sulfite,
- Fluorophotometry,
- FIA,
- Flue gas desulfurization seawater,
- Rainwater
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