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Determination of sodium sulfite in beer samples by high performance liquid chromatography with Ru(bipy)_3~(2+)-Ce(SO_4)_2 chemiluminescence detection

Xingyu Long, Funan Chen

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Abstract

The CL radiation was emitted in the reaction of cerium sulfate oxidation reagent with tris(2,2-bipyridyl) ruthenium(Ⅱ) in the presence of acid.The existence of sodium sulfite made the reaction more sensitive and strong.The optimal conditions for the CL detection were studied and a new method for determining sodium sulfite was described by HPLC-CL.The linear range was 2.0×10-6~5.0×10-4g/mL with the detection limit of 6.0×10-7g/mL,linear regression equation:△/=3.578c+19.721(c:g/mL;r2=0.9984),and the relative standard detection was 3.7% for 5.0×10-5g/mL.This method has obtained satisfactory results in the analysis of sodium sulfite in beer samples.

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What this paper is about

The CL radiation was emitted in the reaction of cerium sulfate oxidation reagent with tris(2,2-bipyridyl) ruthenium(Ⅱ) in the presence of acid.The existence of sodium sulfite made the reaction more sensitive and strong.The optimal conditions for the CL detection were studied and a new method for determining sodium sulfite was described by HPLC-CL.The linear range was 2.0×10-6~5.0×10-4g/mL with the detection limit of 6.0×10-7g/mL,linear regression equation:△/=3.578c+19.721(c:g/mL;r2=0.9984),and the relative standard detection was 3.7% for 5.0×10-5g/mL.This method has obtained satisfactory results in the analysis of sodium sulfite in beer samples.

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Available abstract

The CL radiation was emitted in the reaction of cerium sulfate oxidation reagent with tris(2,2-bipyridyl) ruthenium(Ⅱ) in the presence of acid.The existence of sodium sulfite made the reaction more sensitive and strong.The optimal conditions for the CL detection were studied and a new method for determining sodium sulfite was described by HPLC-CL.The linear range was 2.0×10-6~5.0×10-4g/mL with the detection limit of 6.0×10-7g/mL,linear regression equation:△/=3.578c+19.721(c:g/mL;r2=0.9984),and the relative standard detection was 3.7% for 5.0×10-5g/mL.This method has obtained satisfactory results in the analysis of sodium sulfite in beer samples.

Key concepts: Detection limit, Sodium sulfite, Chemistry, Reagent, Sulfite, Chemiluminescence, Ruthenium, Chromatography

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Determination of sodium sulfite in beer samples by high performance liquid chromatography with Ru(bipy)_3~(2+)-Ce(SO_4)_2 chemiluminescence detection — Research Paper | ScholarLens