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2007•Hebei Journal of Industrial Science and TechnologyRequires access

UV-spectrophotometric determination of glyoxal in glyoxal solution

Ran Liu

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Abstract

Based on the absorption property of glyoxime which can be formed by addition reaction of aldehyde group and hydroxylamine in the UV-spectral region,spectrophotometric determination of glyoxal in glyoxal solution was proposed.Linearity for the determination of glyoxal was found in the ranges of 8.4×10-6～7.2×10-5 mol/L and its regression equation was obtained.The mean recovery for glyoxal is 101.1%(n=8) and RSD is 0.75%.The method can be used for the analysis of glyoxal in the oxidation of acetaldehyde by nitric acid.

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Based on the absorption property of glyoxime which can be formed by addition reaction of aldehyde group and hydroxylamine in the UV-spectral region,spectrophotometric determination of glyoxal in glyoxal solution was proposed.Linearity for the determination of glyoxal was found in the ranges of 8.4×10-6～7.2×10-5 mol/L and its regression equation was obtained.The mean recovery for glyoxal is 101.1%(n=8) and RSD is 0.75%.The method can be used for the analysis of glyoxal in the oxidation of acetaldehyde by nitric acid.

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Available abstract

Based on the absorption property of glyoxime which can be formed by addition reaction of aldehyde group and hydroxylamine in the UV-spectral region,spectrophotometric determination of glyoxal in glyoxal solution was proposed.Linearity for the determination of glyoxal was found in the ranges of 8.4×10-6～7.2×10-5 mol/L and its regression equation was obtained.The mean recovery for glyoxal is 101.1%(n=8) and RSD is 0.75%.The method can be used for the analysis of glyoxal in the oxidation of acetaldehyde by nitric acid.

Key concepts: Glyoxal, Hydroxylamine, Chemistry, Acetaldehyde, Aldehyde, Nitric acid, Photochemistry, Nuclear chemistry

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