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2006•Chinese Journal of Analysis LaboratoryRequires access

Catalytic kinetic spectrofluorimetric determination of trace formaldehyde in food products

Jia-Kun Liu

Open publisher page 1 citations

Abstract

It is based on the catalytic effect of formaldehyde on the oxidation of pyronineB by potassium bromate in sulfuric acid medium.A new catalytic spectrofluorimetric method was developed to measure trace formaldehyde.The reaction runs in boiling water for 8 min.The linear range of the determination for the formaldehyde content is 0.016～0.14 mg/L and the detection limit is 8.6×10~(-6) g/L.The method has been used to determine the formaldehyde content in the water-floated food and the recoveries between 96.0% and 104.2% are obtained.The RSD is between 1.7% and 3.5%.

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What this paper is about

It is based on the catalytic effect of formaldehyde on the oxidation of pyronineB by potassium bromate in sulfuric acid medium.A new catalytic spectrofluorimetric method was developed to measure trace formaldehyde.The reaction runs in boiling water for 8 min.The linear range of the determination for the formaldehyde content is 0.016～0.14 mg/L and the detection limit is 8.6×10~(-6) g/L.The method has been used to determine the formaldehyde content in the water-floated food and the recoveries between 96.0% and 104.2% are obtained.The RSD is between 1.7% and 3.5%.

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Available abstract

It is based on the catalytic effect of formaldehyde on the oxidation of pyronineB by potassium bromate in sulfuric acid medium.A new catalytic spectrofluorimetric method was developed to measure trace formaldehyde.The reaction runs in boiling water for 8 min.The linear range of the determination for the formaldehyde content is 0.016～0.14 mg/L and the detection limit is 8.6×10~(-6) g/L.The method has been used to determine the formaldehyde content in the water-floated food and the recoveries between 96.0% and 104.2% are obtained.The RSD is between 1.7% and 3.5%.

Key concepts: Potassium bromate, Chemistry, Formaldehyde, Catalysis, Detection limit, Sulfuric acid, Bromate, Boiling

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