Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from Russia | Zendy

Yulia B. Monakhova | Zendy; Thomas Kuballa | Zendy; Jenny Leitz | Zendy; Dirk W. Lachenmeier | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from Russia

Author(s) -

Yulia B. Monakhova,

Thomas Kuballa,

Jenny Leitz,

Dirk W. Lachenmeier

Publication year - 2011

Publication title -

international journal of analytical chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.352

H-Index - 16

eISSN - 1687-8779

pISSN - 1687-8760

DOI - 10.1155/2011/704795

Subject(s) - derivatization , alcohol , chemistry , diethyl phthalate , proton nmr , chromatography , guanidine , phthalate , spectrophotometry , nuclear chemistry , organic chemistry , mass spectrometry

Analytical methods based on spectroscopic techniques were developed and validated for the determination of diethyl phthalate (DEP) and polyhexamethylene guanidine (PHMG), which may occur in unrecorded alcohol. Analysis for PHMG was based on UV-VIS spectrophotometry after derivatization with Eosin Y and 1 H NMR spectroscopy of the DMSO extract. Analysis of DEP was performed with direct UV-VIS and 1 H NMR methods. Multivariate curve resolution and spectra computation methods were used to confirm the presence of PHMG and DEP in the investigated beverages. Of 22 analysed alcohol samples, two contained DEP or PHMG. 1 H NMR analysis also revealed the presence of signals of hawthorn extract in three medicinal alcohols used as surrogate alcohol. The simple and cheap UV-VIS methods can be used for rapid screening of surrogate alcohol samples for impurities, while 1 H NMR is recommended for specific confirmatory analysis if required.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research