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. 1988 Apr 22;438(2):369-82.
doi: 10.1016/s0021-9673(00)90268-1.

Determination of Coumarin as an Adulterant in Vanilla Flavoring Products by High-Performance Liquid Chromatography

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Determination of Coumarin as an Adulterant in Vanilla Flavoring Products by High-Performance Liquid Chromatography

R D Thompson et al. J Chromatogr. .

Abstract

A high-performance liquid chromatographic procedure was developed for the isolation and quantitation of coumarin from vanilla-based liquid flavorings of Mexican origin. Forty products representing fourteen different Mexican brands were assayed for coumarin, vanillin, and ethyl vanillin by the proposed method. The procedure has been adapted to the analysis of other products including domestic vanilla extracts and imitation vanilla flavorings for vanillin, ethyl vanillin, 4-hydroxybenzaldehyde and piperonal. Chromatographic retention data for thirty-seven compounds associated with vanillin and vanilla products employing two mobile phase systems are presented.

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