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Detection of ethyl carbamate in liquors using surface-enhanced Raman spectroscopy.

ABSTRACT: Ethyl carbamate (EC), a potential carcinogen, can be formed during the fermentation and storage of alcoholic beverages. In this work, quantitative detection of EC in alcoholic beverages by using surface-enhanced Raman spectroscopy (SERS) is reported. Flower-shaped silver nanostructure substrates and silver nanocube substrates were prepared and employed as SERS platform. Flower-like silver substrates had better Raman enhancement effect on EC and were selected for further EC detection. In EC SERS spectra based on flower-shaped silver substrates, the strongest and reproducible characteristic band at 857 cm-1 was chosen for establishing a linear regression model in the concentrations ranging from 10-5 to 10-9 M, which effectively extended the application scope of the quantitative model for determination EC. Furthermore, a real alcoholic beverage was tested to verify the feasibility and reliability of the method.

SUBMITTER: Qi H

PROVIDER: S-EPMC6304119 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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Detection of ethyl carbamate in liquors using surface-enhanced Raman spectroscopy.

Qi Haiyan H Chen Huacai H Wang Yan Y Jiang Li L

Royal Society open science 20181212 12

Ethyl carbamate (EC), a potential carcinogen, can be formed during the fermentation and storage of alcoholic beverages. In this work, quantitative detection of EC in alcoholic beverages by using surface-enhanced Raman spectroscopy (SERS) is reported. Flower-shaped silver nanostructure substrates and silver nanocube substrates were prepared and employed as SERS platform. Flower-like silver substrates had better Raman enhancement effect on EC and were selected for further EC detection. In EC SERS ...[more]

PMID: 30662756

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