Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from Russia
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...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Analytical Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2011/704795 |
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| author | Yulia B. Monakhova Thomas Kuballa Jenny Leitz Dirk W. Lachenmeier |
| author_facet | Yulia B. Monakhova Thomas Kuballa Jenny Leitz Dirk W. Lachenmeier |
| author_sort | Yulia B. Monakhova |
| collection | DOAJ |
| description | 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 1H NMR spectroscopy of the DMSO extract. Analysis of DEP was performed with direct UV-VIS and 1H 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. 1H 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 1H NMR is recommended for specific confirmatory analysis if required. |
| format | Article |
| id | doaj-art-85a1658e780542baad1d49948af44c97 |
| institution | Kabale University |
| issn | 1687-8760 1687-8779 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Analytical Chemistry |
| spelling | doaj-art-85a1658e780542baad1d49948af44c972025-02-03T01:02:48ZengWileyInternational Journal of Analytical Chemistry1687-87601687-87792011-01-01201110.1155/2011/704795704795Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from RussiaYulia B. Monakhova0Thomas Kuballa1Jenny Leitz2Dirk W. Lachenmeier3Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Weissenburger Straβe 3, 76187 Karlsruhe, GermanyChemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Weissenburger Straβe 3, 76187 Karlsruhe, GermanyChemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Weissenburger Straβe 3, 76187 Karlsruhe, GermanyChemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Weissenburger Straβe 3, 76187 Karlsruhe, GermanyAnalytical 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 1H NMR spectroscopy of the DMSO extract. Analysis of DEP was performed with direct UV-VIS and 1H 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. 1H 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 1H NMR is recommended for specific confirmatory analysis if required.http://dx.doi.org/10.1155/2011/704795 |
| spellingShingle | Yulia B. Monakhova Thomas Kuballa Jenny Leitz Dirk W. Lachenmeier Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from Russia International Journal of Analytical Chemistry |
| title | Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from Russia |
| title_full | Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from Russia |
| title_fullStr | Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from Russia |
| title_full_unstemmed | Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from Russia |
| title_short | Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from Russia |
| title_sort | determination of diethyl phthalate and polyhexamethylene guanidine in surrogate alcohol from russia |
| url | http://dx.doi.org/10.1155/2011/704795 |
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